[Pibe38]

Do you have it set to check itself every so often? The device will connect itself to the internet to check for POP3 account.

Also, check the options for Spb Weather as it may be the culprit behind this.

Both these things usually connect themselves to internet to stay updated.

Even after you use PIE for the first time it will connect to the net and stay connected, the battery getting drained it's probably happening becuase you have the POP3 account to check itself every 10 mins. or the same with Spb Weather.

The device doesn't get drained more quickly just because the EVDO arrows are greyed out, only when there's data transfer (EVDO arrows solid white) is that the battery is getting drained.