Well, after browsing this and other sites for the last month i decided that the n900 was the phone for me...i went to the NFS on Regent Street on tuesday and ordered it...can't believe i had to wait 3 whole days to get it!! ;-)....
Been playing with it since yesterday nearly non stop and i have to say that it's absolutely superb - i love it. Battery life is fine if you follow the tips on this site somewhere, no reboots as yet and the mic works....very pleased, well done Nokia :-)