Hey, just attempting to use my app on my ICS phone and it doesn't seem to work at all.

Phone: HTC Sensation
HTC Sense: 3.6
Android: 4.0.3
Software number: 3.32.401.5
Probably more important, browser version: WebKit/534.30

Got a bunch of other devices which are HTC Sensation XL and Samsung Galaxy SII (2.4.3) which both seem to work fine. Hell, even the blackberry bold seems to work
Making a pretty hefty mobile website for work and going to be supplied with around 20 different phones for testing so you'll probably hear quite a bit from me in the coming weeks.