Hi Qole, I have one suggestion. Currently, CJK (Chinese, Japanese, Korean) users have the following problems with using maemo-cjk, and it seems there is no solution:
1) maemo-cjk replaces hildon virtual keyboard completely with matchbox-keyboard -- not even switching is possible.
2) in diablo, matchbox-keyboard (with maemo-cjk) cannot work in microb browser -- this force most of the users to drop maemo-cjk completely, and rely on online chinese input (like www.g.cn).

Most of the users are casual user (like me). So actually a Chinese editor is sufficient for occasional usage, and cut-and-paste from the editor can be used at least.

I understand you are splitting your (large) software into 2 part: chroot and debian/ubuntu. May I suggest that besides debian/ubuntu, you compiled one with minimum apps to provide a CJK editor (leafpad). What is needed in that image file is simply leafpad, SCIM (scim-pinyin etc), and matchbox-keyboard. No need LXDE, open-office etc. This can then become a viable alternative to maemo-cjk and solves the above 2 problems. In fact, it also gives users the flexibility to use other input methods, like gcin (let advance users install themselves).

I'm actually using it myself, and I keep the CJK leafpad opened all the time to do away with scim loading time (no impact to battery life). I think many CJK users would appreciate this easy CJK Editor apps