The AppSurfer app-demo site, once limited to Android-based smartphones, is adding tablet applications to its consideration list. "To enable this technically, AppSurfer runs a customized version of Android that is optimized for cloud. ... It runs multiple instances as needed and streams graphics to users via HTML5 or Flash," John Koetsier writes. Developers can submit their work in the Android app file format, co-founder Amit Yadav says.