Was exploring some cross-platform mobile frameworks in the market. Even though there are lot of them in the market. Couple of open source solutions sounded very impressive.
Tried some samples on Rhomobile, yet to try phone gap. In a way these frameworks saves lot of time & cost involved in developing application specific to an operating systems / app markets. Instead of working on a specific SDK's it's a no-brainer to choose such frameworks. Write once & port to any device type. How cool it is !!!, way to go...