Sony Ericsson’s R3A update can well be considered the final ROM update the X1 will ever receive – no word has leaked about a Windows Mobile 6.5 update for the critter as of this writing.
Fortunately, we are not alone – the boys at xda-developers have created the custom ROM pictured below:

Hit the URL below for the full scoop – and stay tuned for further info as I plan to update my critter in the near future:
http://forum.xda-developers.com/showthread.php?t=509891
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i wont windows mobile 6.5 for xperia x1
Hi deaa,
thank you so much for talking back!
A plethora of custom ROMs awaits you on xda-developers!
With best regards
Tam Hanna