T4ResX will help you localize your models, properties, error messages, html, javascript ..etc, via simple ResX files, by generating a strongly typed assembly that you can then use in any type of project you like (asp.net, mvc, forms, phone ...).
This extension adds a item template forT4ResX to Visual Studio, so that you can easily include it in any project at any time.
Check out the Wiki for usage instruction & how to exploit helper methods (especially for localized javascript).
UPDATE: Recompiled VSIX with VS2010. Will now correctly install in both VS2010 & VS2012. 2012 has a bug where you can declare a VSIX compatible with prior VS products but install will then fail because VS2012 uses a newer and incompatible VSIX format..
Overview
Have a project that uses ResX files ?
Transform all ResX files in a project into a strongly typed assembly