Android 2.3 is Gingerbread, but apparently a version of the Sony Ericsson Xperia Arc that Tweakers.net got ahold of yesterday was running Android 2.4 as documented by the below screenshot:
Interesting indeed. Tweakers found the 2.4 version on the Arc to be an incremental update to 2.3 with animations when deleting icons and other small changes such as hooks for Google Talk Video that didn’t seem fully implemented.
Hopefully these are elements we’ll see in the official launch of the XPERIA Arc and perhaps updates of other Android phones currently running 2.2 or 2.3 but there isn’t really any way of knowning. Until then we’ll keep our fingers crossed and keep snooping for details and evidence.