One of our readers has pointed out that even if you use a password lock on the new iPhone 3G S the voice dialing functions still work.

It's true. With the phone locked down you can still hold down the home key, and voice dial someone in your contacts list. Some will consider this a feature, and others a bug. If I wanted to make a quick call, it seems it would be nice to bypass the log in. If a thief had your iPhone, he'd have to know the name of someone in your contacts to call them, or just try a lot of guesses.

Then there is the matter of why a criminal would want to call someone on your contact list. "Hi Bob, I just stole this iPhone. Pretty neat, huh?"

If this issue does bother you, Apple has thoughtfully given you the ability to turn voice dialing off, and when you try it with the phone locked the computer voice dutifully warns you that voice dialing is non-functional.

You can't, by the way, turn off iPod voice control. So anyone could pick up your locked iPhone and say "play songs by Tiny Tim", wearing down your battery and offending everyone around them.

Thanks to Mike for pointing this out, but I don't think it's a big issue. Have I missed something? Weigh in with your thoughts.

Pity the poor iPhone 3G owner who now has to grapple with reality; yes, what was until Friday the world's coolest smartphone is now simply a piece of yesterday's tech, as current as a punchcard and as enduring as a wax cylinder recording on a hot afternoon. No, not really -- the iPhone 3G is just as cool as it was a week ago, and for $99 it's a relative bargain. Still, there's some envy on the wind.

Some of our readers have apparently been so dazzled by Apple's enthusiastic promotion of the new iPhone 3G S that they were fooled into believing that the hardware-linked features of the 3G S (the compass and the voice controls, specifically) would be made available on the 3G with the delivery of the 3.0 software update. They have written to us, irate and frustrated, wanting to know what happened to their promised features. We sympathize, and we want to help.

There is, as it happens, a way to get one of the marquee features of the 3G S -- voice control -- onto your iPhone 3G or original iPhone. The vlingo app, available free in the App Store since December of last year and also available for Blackberry & Windows Mobile, gives you voice command dialing from your address book, map search, Yahoo web searches, Twitter/Facebook updating, and more. The recognition quality is quite good; it's worked as well as Google Voice Search for me in most cases.

Vlingo is quite a bit slower to recognize audio on the 3G than the built-in Voice Control is on the 3G S (unsurprisingly, considering the horsepower boost on the new phone); it also does not allow iTunes control, while Apple's tool does. Despite these drawbacks, it's fun to use and very slick. Update: As Eitan points out in the comments, vlingo's speed is not necessarily limited by the local processing power, since it depends on the remote server for audio analysis.

One of the major points of contention regarding vlingo, and a cause of many negative reviews on the App Store, is that the app does have to do something a little bit touchy in order to enable voice dialing: it asks if it can upload your contact names to vlingo. While this is a necessary step if you want to use voice dialing, and while the company says it does not include phone numbers with that upload nor does it use the information for any purpose other than creating spoken profiles to recognize the names of your contacts when you speak them, there are plenty of users who aren't comfortable with this step. If you're not OK with it, you can still use vlingo without the voice dialing feature; at that point, however, it's not dramatically better than Google's Voice Search.

You can watch a video demo of vlingo in the 2nd half of this post. If you've got other workarounds or third-party apps that help 3G owners level up with their happy 3G S comrades, please let us know.

In product shootouts between the iPhone and other smartphones, the iPhone usually gets dinged for not having voice dialing built in (although you can get around that with services like Jott). Vocalia, from Creaceed, is a voice-recognition dialing app that has been around for about six months.

Vocalia (click opens iTunes) displays a HAL9000-like glowing "eye" after being launched. When the eye appears, speak the name of a contact you wish to call. Vocalia analyzes your speech, then displays the closest matches to what you said. If there's more than one contact listed, you then speak the number next to the correct one. Are there multiple phone numbers for a contact? Just say "home", "mobile", "work" or whatever to dial.

Creaceed and TUAW would like to give away seven free promo codes for Vocalia.What do you need to do to enter? Just leave a comment on who you'd like to dial using Vocalia. Good luck, and we look forward to seeing your creative answers!

• Open to legal US residents of the 50 United States and the District of Columbia who are 18 and older. (Sorry, we know our international readers want to participate, but promo codes don't transfer outside the US.)
  
• To enter leave a comment telling us what person you'd like to call using Vocalia.
  
• The comment must be left before February 28, 11:59PM Eastern Time.
• You may enter only once.
• Seven winners will be selected in a random drawing.
• Prize: Promo code for free copy of Vocalia for iPhone (US$3.99)
  
• Click Here for complete Official Rules.