Rhomobile will announce Wednesday version 2.0 of its development-as-a-service platform for building smart phone applications.

RhoHub 2.0 is a SaaS platform enabling online development of native applications for Apple iPhone, RIM BlackBerry, Windows Mobile, and Google Android phones. RhoHub applications can be hosted via Heroku hosting infrastructure. Ruby and HTML development are supported on RhoHub, which leverages the Model View Controller paradigm.

Featured in version 2.0 is the ability for a developer to use their own local IDE or editor of choice. Other capabilities include built-in version control, hosting with quality-of-service guarantees, and support for RhoSync 2.0 data sync capabilities. Native mapping across all devices also is featured.

“RhoHub 2.0 lets developers create apps for iPhone, BlackBerry, Windows Mobile, and Android within their Web browser from anywhere, making the build process faster and more affordable,” said Adam Blum, CEO of Rhomobile, in a statement released by the company. “And with the addition of our easily implemented RhoSync 2.0, offered hosted on RhoHub, developers can quickly create and maintain powerful enterprise-class native smart phone apps with the ability to work and sync with offline data.”

A basic subscription for RhoHub 2.0 costs $49 per month, including the ability to synchronize as many as 10 devices. other subscription options are available supporting more devices.