Firefox 3.5 (linux) doubled the size of the fonts when I was setting the font in “pt”. When I switched to “em” things seemed to work consistently across browsers. 30fps
Android 2.2 (Droid 2) works well but slowly. It also didn’t support the Audio tag. 6fps
Android 3.0 (Xoom Tablet) seemed to have some issues rendering half of the wheel. It looked like a bug with the hardware acceleration. I made some minor tweaks to the rendering and things started to work. 15fps
iPhone 3 didn’t render any of the text, but played the sound and spun the wheel. 3fps
iPhone 4 rendered fine but as slowly as the Android 2.2 device. 5fps
Chrome (linux) worked great, and was the platform I was developing on. 30fps (max)
I was also using the clip() method to ensure the text didn’t go outside of the wheel, but this heavily impacted performance. So instead I just chopped the text manually and performance doubled.
I realise HTML5 is new, but I’m really hoping all browsers will start to support it consistently and across the board. I’d hate to start writing large blocks of code to cope with all the browser quirks.
Update: Soon to come, the ability to find your own lunch places, as well as integration with foursquare so you can see how popular the venues are with your friends.