So far so good. The Apple iPhone is doing the job during my trip overseas. I already took care of several urgent e-mails using the iPhone. I am able to access my e-mail accounts (POP and IMAP accounts) and with the IMAP account which is retrieving e-mails from an Exchange server, I can see the e-mail folders and even file items within folder.
So far, and 24 hour into my trip, the data usage on the Apple iPhone indicates:
Sent: 631 KB
Received: 3.9 MB
That is about 10% of the 50 MB monthly international plan. At this rate, I will probably reach the 50 MB limit in the next week or two, and then any additional data usage will cost 2 cents per kilobyte. So an additional 50 or so MB of data would cost $1000.00