I quite often lose service, but there is no pattern to it! Sometimes it come back, sometimes it doesn't. If it has gone, then it won't go into airplane mode either - it seems to need to say goodbye to the network!
This is different to the scenario where I lose data connection, dispite having signal. In this situation the airplane mode trick does the job. When in this state, ifconfig doesn't display a ppp network.
Rhod100_uk, latest everything!
Vodafone HTC Rhodium/Touch Pro2
XDAndroid FroYo FRX07
rhod100_uk with AUO panel