It may be all marketing mumbo-jumbo, but I have the ikleen or ikleer or whatever and basically just use the very cool huge microfiber cloth it came with.
I can use the solution on my powerbook as it was designed, but my new toy takes it dry.
I have just had a wipe from Protechted. It has lots of pockets over the surface so it will not scratch the screen. Does`nt require any fluid at all and now my new ipad2 loks like new . You can use it on all types of screens as well. My wife has gone mad cleaning everywhere with it. Makes a change from her doing nothing so i can`t complain really.
I hope this helps
If you read the mini manual that came with the iPad, it tells you just wipe with a piece of cloth. Don't use any solutions because it destroys the anti-fingerprint coating.