This week Microsoft released Windows Mobile 6.1 that should improve system stability as well as introduce some new features. There won't be any revolutionary visual changes to this OS, but it will appeal to many handheld users, especially the ones that own non-touch screen devices.
The most notable improvements in this iteration are improved stability, threaded text messaging and copy-paste functions.
The first handhelds available with Windows Mobile 6.1 are AT&T's Tilt and Samsung Blackjack, whereas Motorola Q9c, HTC Touch, HTC Mogul and Samsung Ace are to follow.
You can read more here.