Even though Nokia C2-01 is advertised as 3G its maximum speed in 3G areas in only 384 Kbps and for browsing / checking emails in the device its true to its price as the screen is small and the functionality is limited.
The mail client is nokia's ovi mail client which was easy to configure and setup my gmail account using my operator's EDGE enabled gprs services. This mail client can be used to configure many email networks like yahoo, hotmail, ovi mail and pop enabled mail servers. The 2" screen is very limited and its useful to read shorter emails as there is no html viewing capability or for viewing attachments like document, spreadsheet and presentation. Since series 40 phones are not multi-tasking unlike sony ericsson's java based feature phone's like cedar, elm, hazel there is no push mail support either.
The default browser is Opera mini but a very old version at 4, but i managed to download and run Opera mini 6 and this was good enough, but its best to read mobile versions of the sites to suit the small screen.
The chat functionality was provided by ovi chat with which you could connect to all popular chat clients but haven't tried it out yet. The inbuilt facebook client was basic but it's ok to just checkup on your facebook status and wall.
The surprising thing was according to nokia customer care this phone didn't have modem capabilities to connect to a computer / laptop to act as a modem but i was able to connect it as a modem via OVI suite thru a bluetooth connection and browse the net in my laptop. The other thing I am waiting for is to use it in a 3G network ...hopefully that will be in the near future....