The current CM10 + GApps experience on Motorola Xoom is plagued by the size of the CM10 ROM -- there isn't enough space left after flashing the CM10 zip to fully flash the GApps zip. This results in gtalk force-closing while trying to video chat and some other issues.

I've been following a discussion about this on the XDA development forum for Xoom. Here's someone mentioning that he 'removed' some files from the CM10 ROM zip file to reduce it's size: <http://forum.xda-developers.com/showthread.php?p=34462283#post34462283>

Could someone guide me how to do this?  

Is it simply unzipping the file, deleting certain files and re-zipping?  

or is there more ? (like signing the file)  

To remove apps from the ROM, should the .apk file simply be removed or do apps also have
associated files that need to be removed as well?  

In the same discussion some people talk about moving certain files from the system partition to the data partition? How could this symlinks information be stored in the ROM zip file? or are they talking about creating the symlinks after flashing the zip?

Thanks