where can i find apps for w580i?

are there any particular apps that are useful?

i've seen one called cellity that offers free sms. is this legit?

It uses internet, so it's not free but it is legit.

W580i can run any java app for 240*320 (k800i, K810i, W910i, K850i, W880i, W850i, S500i and so on :) )

myW580 Free W580i downloads : Welcome to the new W580 site is an ok site