There are a few good Japanese language sites out there for Windows CE and mobile news.

Windows CE Fan: http://www.wince.ne.jp/
Keitai Watch: http://k-tai.impress.co.jp/
ZDNet Mobile: http://www.zdnet.co.jp/mobile/

Unless you understand Japanese these won't be much use, but I recommend the following two machine translation sites:

E-lingo: http://www.e-lingo.com/browse/browse.php3 (Also available through: http://www.excite.co.jp/world/url

Amikiai: http://www.amikai.com/browse/

Using one these you should be able to get a gist of what the article is about and understand the main points.