Do you use an Ipad (or any alternative tablet) for work/business.....

Am currently looking into buying a tablet for the business and wanted to check if anybody had and which one.....I am not an apple fan but get the impression the Ipad2 is the best on the market. However still not totally convinced....not least due to a visit to an apple store - the store assistant seemed to think it would do everything I wanted it to do (without any sort of demo ....yes it will synchronise with your computer, do powerpoint presentation etc etc) - oh and of course it was out of stock....so it MUST be the best on the market then?!?!

Just worried that it is a glorified games machine....and not as capable as some other machines for business use (have looked at the playbook but am concerned that it doesn't provide sufficent screen size) - thoughts and experiences welcome.....