Nokia 7110 is one of the first Nokia handphones providing WAP browser. Some of its nice new features are: Enter *#0000# into the Nokia 7110 to get the software version. The current latest version is 4.88, that can be flashed into the 7110 by Nokia's dealer. On mine it gives software version 4.84 dated April 7, 2000 as below:
V 04.84
07-04-00
NSE-5
(c) NMP.

There are a number of addon software that can help make full use of your 7110 as reviewed more fully at gadgetman.plus.com and mobile.box.sk. Some of them are:

Update July 30, 2000. To get software version.
Update October 8, 2000. Great FAQs at gadgetman.plus.com and mobile.box.sk. And I followed fondue's advice to get the the Nokia 9110. ;-}

After
http://www.nokia.com/phones/7110/
http://www.unofficial7110.co.uk/
http://www.gadgetman.plus.com/7110e/faq.html
http://mobile.box.sk/manufacturer.php3?newsprj=nokia