I have an unlocked (T-Moblie) 7290 which I'm attempting to use on the Vodafone network. It registers with GSM, gprs & GPRS networks with the Vodafone SIM but, for some reason, I cannot get it to work with my corporate wireless email and calendar sync (might be BES). Prior to buying the 7290, I've been using a Vodafone 7730 which worked fine. The only thing I've noticed that may or may not be significant is that on the 7290, the network is identified as 'vodafone' in lower case whereas on my 7730 it was identified as 'VODAFONE' in upper case. The phone and SMS on GSM work fine with the Vodafone SIM. Any comments, help would be much appreciated.