The iPhone Blog reports that in the iPhone 3.0 beta firmware, users are being warned that they may not redownload previously purchased applications over-the-air without being charged. However, the dialog box (shown below) does indicate that users may still redownload applications for free through their computer.
This is a big move from how things currently work. In the current versions of the iPhone and iPod Touch, users are allowed to re-download previously purchased applications without being charged again on both over-the-air and on their computers.
From months of using the iPhone 3.0 beta firmware, I can not say I’ve seen the dialog box shown above. One of my favorite things about the iPhone (or iPod Touch for that matter) is If I ever need FTP On The Go, or any other app, and I don’t have it on my iPhone for whatever reason, I have the ability re-download it without being charged. If Apple does decide to start charging to re-download applications over-the-air it’ll be a big disappointment. What do you guys think? Let us know in the comments!
- source: theiphoneblog.com


This is what i read somewhere else……
We’re guessing that with the on-device account management coming to iPhone 3.0 — where you can log in and out of multiple iTunes accounts right on your iPhone — Apple is putting this in place to prevent the sharing of purchases between accounts. (Otherwise you could just log into 100 other iPhones with your account and give them all your paid apps right over the air).
in all of the betas ive tested (for iphone 3g), i havnt recieved this message, but you just download it like usual. It may be diffent for the iPod but i think it is a strange limitation to put in
I wonder if this issue only occurs when you have multiple libraries/accounts on the device?
Another reason to get rid of my IPhone (not think of never getting a good gsm signal at home). Apple is going the wrong directions.