Now this is really upgrade madness. First it was my Galaxy, then my HD2 and now my trusty 5800 Xpressmusic get's an update too!
I'm pretty happy at the support this unit is getting even after 2 years!
The new software is 52.0.007 and according to Daily Mobile http://forum.dailymobile.se/index.php?topic=35526.msg420111#msg420111
The changes include upgrade in CPU performance, improvements in touch screen and wifi etc.
Will give feedback later.