The older version is really painfully slow..
Slow enough to switch to other browsers like Opera Mobile or Dolphin..
Back to Firefox..
Anyway using the Samsung Galaxy S i9000
Most things work out of the box, except my Broadcom WIFI, which is solved by RPMFusion.
Running stable. Maybe switching to XFCE for lighter resources usage.
Mint looks really good too. Was using Mint 10 before and it looks really slick.