3GS mail sync in standby not using WIFI?!
I experienced a big jump in my phone bill after I recently got my 3GS.
After looking at the details on my bill it seems that it have charged me for data traffic for every mailsync I have done while my phone have been in standby mode, even though I have a active WLAN connection before my iPhone either goes into or is set to standby.
Am I correct in assuming 3GS does not support WLAN to be active in standby mode, and therefor it will always sync emails using normal cell 3G connection?