There's been a flurry of software activity from the Apple mothership today, and just when we think things are settling down, some new software appears.

If you're on an iOS device you'll see a new version of iBooks, now at version 2.1. It's a redesign to support the new iPad Retina Display and adds a feature that lets page numbers correspond to the printed editions. This only works on some titles, but obviously the feature will be spreading to more and publications.

You can now search for a page number and jump to it with a single tap and you can use your finger as a highlighter when swiping over text.

Find My iPhone changes are mainly to support the iPad Retina Display, and there are the usual bug fixes and stability enhancements. Find my iPhone has rescued many a lost iPhone and iPad, so if you're not signed up, it's free to do so.