I would type in name of the device into google followed by review, and choose the one that seems most familiar, alternatively you can ask websites such as the gadget show as they do reviews that seem pertinent on most gadgets.
You propably mean iPaq, which is one of the pocket PC's introduced in 2000, which is pretty old. It was shipped with Windows Mobile 2003 or 5.0. The best for such a review is to go to Pocket PC Central on the web.
ipaq q3600 series pc have 206mhz processor which is enough for office work with 3.5" screen they looks not bad and 32mb ram with irda dara port they are best
To find useful reviews for i Pac Pocket PC 3600 model you can go to any search engine like google or msn or amazon. And write at the search bar that keyword it will show your desire links.