Field Runners - I bought this iPhone App and I am totally addicted.
Defend and control the field using a diverse selection of upgradeable towers

bejeweled 2 - Just simply brilliant, well worth the 1.79

Mobile Safari -I'm not 100% sure why you can't downloiad files with mobile safari, perhaps they are looking to improve in the future, I am hoping so as I want to make a web based vcard downloader and at present I can't :(