Mobi_nightlytt is a project mainly written in JavaScript, it's free.
Nightly Tester Tools for Mobile addon
Nightly Tester Tools is an addon for aiding testers of nightly builds of Mobile Firefox or 'Fennec'. Some features are:
You can install the latest stable NTT from addons.mozilla.org. To install for development, clone the repo: git clone git://github.com/sammybahamas/mobi_nightlytt.git
then add a file titled '[email protected]' to the "extensions" directory in your profile folder with the text: ~/mobi_nightlytt/
or whatever the path to your nightlytt folder is.
All bugs are reported to the Nightly Tester Tools component at bugzilla.mozilla.org. bug list, file a bug. Check out the wiki for a list of current and proposed features and feel free to file bugs and submit patches.