StumbleUpon, a social website discovery tool, has launched an iPad app. The free app lets you stumble through iPad-ready pages in all your saved topics, as well as popular topics and StumbleThru channels. The app also lets you rate, review and share pages, as well as access your Favorites. StumbleUpon says its iPad app activity will be automatically synced with your StumbleUpon profile. You can download the StumbleUpon app here.
