Came across this at Coles (Oakleigh, VIC) today. Seems like a decent deal for a more pocket-able android phone.
Specs here
http://www.gsmarena.com/sony_xperia_u-4437.php
Unsure whether its the 850 or the 900 version.
It seems like there is some life on the XDA page, but only CM9..
http://forum.xda-developers.com/forumdisplay.php?f=1728
Possibly available at other Coles, YMMV.
waiting for the "HTC Velocity 4G" posts to hit here..