You can seamlessly switch between the Windows 7 and Symbian modes – it just takes a second. It seems that both OS’s keep running until the battery power drops to certain level. When this happens, the phone switches automatically to Symbian, turning off the Windows 7 altogether.
Most probably there is some kind of ARM processor inside to keep the Symbian alive. When in Symbian, you don’t have Wi-Fi access, but you get Bluetooth and Infra-Red connectivity instead. The SSD is reserved solely for Windows 7, but you have a microSD card slot (with a 2GB card pre-installed) to enjoy your Symbian apps. The GPS, HSPA and GSM connections seem to be available in both Windows/Symbian modes. The Fujitsu LOOX F-07C weighs 218 grams and measures at 125x61x19.8mm. There is no official information on Symbian version or on the ability to make phone calls under Windows 7.
According to NTT DoCoMo’s press release, the Fujitsu’s LOOX F-07C should be released this June or July at about $860 in price. Once again, it’s a Japan-only gadget, sorry.