I have issues with dropping conection too.
Worst part is that i can't re-initiate the connection in a simple way.

Maybe I have slightly less problems with my rock solid Linksys with Tomato, than my parents' shitty Thomson that the ISP gave them.
This and the fact that it seems to be worse in my pocket versus holding the phone leads me to believe that is a reception issue for certain angles/orientatios. (Thomson signal is ridiculously weak when you go more than one room away)