PhoneGap

PhoneGap is a development tool that allows web developers to take advantage of the core features in the IPhone, Android, and Blackberry SDK using JavaScript. Mobile Web goodness!

aka Apache Cordova

http://en.wikipedia.org/wiki/PhoneGap

Oct'2011: Adobe has entered an agreement to acquire Nitobi, the startup behind PhoneGap. Alongside news of the acquisition, Adobe and Nitobi have jointly announced plans to donate the PhoneGap project to the Apache Software Foundation.

Nov'2013: a couple CTO-s I trust just basically said: "if you're not Mobile-only, and you're in a Start Up (so resource-constrained), then (unless you need some serious OS-integration) PhoneGap is definitely the right choice for your Mobile app development".