Hi. I've fixed arm-related cross-compiling issues in node.js ebuld (at least it works on arm system). Here they are:
nodejs-0.6.7.ebuild*https://github.com/ierton/uemd-overlay/blob/master/net-libs/nodejs/nodejs-0.6.7.ebuild
v8-3.6.4.ebuild*https://github.com/ierton/uemd-overlay/blob/master/dev-lang/v8/v8-3.6.4.ebuild
To make it work, I had to enable*armeabi=soft in the v8. Also nodejs-0.6.7 is known to not work with recent v8 - i've fixed RDEPEND.

Sergey