Let the hive mind of Engadget get that for you.
"I'm in the market for a new phone and money isn't a limitation. I'm also not partial to any particular US carrier, but here are some of the features I'd like to have: WiFi, GPS, good coverage in lots of places, push Gmail (a must!), physical keyboard (a must!), a touchscreen, decent battery life and a relatively slim body. And please, nothing that has a fruit logo on it. No offense to the fruit fans, though. Thanks!"
Gerd,
My name is Danny Benishay and I face the same problem - the need for mobile phone w/ quad-SIM cards. Have you found a solution ?
Do you know who develop or manufactur the coomunication chipset that make this feature - happen ??
You can see some stuff about myself at http://www.linkedin.com/in/dannybenishay
Thank you,
DannyB.