Rhodes

Rhodes is an open source Ruby-based framework to rapidly build native apps for all major smartphone operating systems (iPhone, Android, RIM, Windows Mobile and Windows Phone 7). These are true native device applications (NOT mobile web apps) which work with synchronized local data and take advantage of device capabilities such as GPS, PIM contacts and calendar, camera, native mapping, push, barcode, signature capture, Bluetooth and Near Field Communications (NFC).
Rhodes is the ONLY framework with: support for Model View Controller (other frameworks force you to put all business logic into the view as JavaScript), synchronized data (the price of entry for enterprise apps), support for ALL devices (Android and iPhone is not “crossplatform”), a hosted build service (RhoHub – which changes the game for mobile app development entirely) and true industrial device capabilities such as NFC. Rhodes has many other major advantages over every other framework and underlying SDK, which can be summarized as modern development goodness for mobile apps.

If you don’t need an IDE and have Ruby already, you can install Rhodes with: “gem install rhodes”. Instructions on how to build your first app are in our Rhodes Tutorial

http://rhomobile.com/products/rhodes/