recommend a website to find Nokia specification

Lots of people use younet or pconline to find out the detailed specification of cell phones before purchase, including Nokia phones. But the information on younet or pconline isn't detailed enough. 

These days I found a website, 

<http://www.forum.nokia.com/devices/matrix_all_1.html>

This is used for developers, so the specifications are more detailed than those for end-users, especially, it states the software/operation system versions, which is very helpful. The only limitations is, S30 is not in the scope, e.g. 5030 can't be found there.

Maybe you want to know, is it really important to know version? Answer is, yes. One example, the "Sync" function, in S40v2, the only service I found usable in Mainland is Tencent, but in S40v3, Google is usable. More difference can be found in S40 developer manual, where I found this useful website.