I got a Nokia 770 Internet Tablet. With Maemo, a linux based operating system, it officially supports several European languages. Fortunately, there is Maemo CJK Project, which brings East Asian language support to Nokia 770 / Nokia 800. Since the OS is Linux and GTK+ based, lots of input method on Linux can be ported to it. At this time, SCIM is the only choice for Chinese language pack. Thank you, wolfg.
PS: wolfg also ports StarDict to Nokia 800.