I have an Exchange account that I sync manually when I find a WiFi connection (the data plan is way too expensive for me). This works fine: I find a WiFi connection, open ActiveSync, and tap Sync. It would be nice for it to auto-sync when the device connects via WiFi, but doing it manually the first time is no big deal. As I'm going through my new mail (WiFi connection still active) I can see the WiFi icon change to show that its syncing to update my Exchange account as I'm reading, deleting, and moving e-mails. However, I find that ActiveSync is trying to connect but it says that with my current schedule (As Items Arrive) a cellular Internet connection is required. But, then I tap Sync and it goes ahead and syncs. I'm assuming that if I had the data plan, it would be syncing as I'm reading e-mails. So, I guess my question is: is there a way to have it work like I have a data plan and sync as I read/delete/move e-mails. It just seems stupid that the connection is there, but I have to manually press sync. It would be nice to eliminate that second Sync tap when I'm finished.

Any help would be appreciated - thanks!

Assuming you have the updated ROM, "As Items Arrive" is the same as DirectPush. And unfortunately, DirectPush will not work with Wifi.

The reason (excerpted from this blog)

3. Is Direct Push supported over Wi-Fi?

No. Direct Push requires a cellular data connection. It is not supported over Wi-Fi or Desktop Passthrough(when the device is cradled).

Due to hardware limitations, Wi-Fi cannot go into standby mode and receive notifications. So in order to support Direct Push over Wi-Fi, the Wi-Fi connection would have to be kept alive which in turn would drain the battery very rapidly.