If I understand what your asking for, What do we need another wi-fi disk access app for, there are many of these in the appstore. Thats probably why you're not seeing any new ones.
Well, since Apples got all kinds of PR out there (not including the mobileme box & sales kid, who say it is already out) saying it's coming, as well as images of it working, and they're still using it as fairly major selling point in their mobileme service, I would certainly hope that they'd come out with it.
What could an "official" app do that those can't. if you don't have a sticky ip address then there are pleanty of services that do dynamic dns updating. You don't need mobileme for that.
Can you get that service, plus everything else mobileme comes with, integrated as seamlessly and conveniently as a mobileme acct, at the same price?
...not that it matters much in reality, as I still can't edit any of the files I'd be accessing on the phone anyway I guess. Guess I could send them to an on-site computer... course, if that computer has inet access to get the email, then I might as well just access them from that computer to begin with. & if the computer doesn't have inet access, I'd need em on a usb drive, which the iphone, has no way of sending data to, or acting as. Unlike every other phone or even ipod. Guess this is a smart phone, so long as it is very private and doesn't talk to other devices.
---fun fact of the day---
The word "Idiot" derives from the greek word "Idios" meaning "Private Person" or one who chooses to close themself off from the community and live an insular, sheltered life.
Perhaps that's what the "i" stands for in "iPhone".
I have an idiotphone?