Former X10 owner here and i am a girl so i guess i should give my opinion
I think i have average size hands...
No man-hands like on Seinfeld.....lol
Personally, the X10 was comfortablel to hold in my hand.
I love the way it is designed because i think that is the way SE
designed the device was for it to be perfect for the human hand...
Size matters(to me) for a multitude of things
It is not to big, not too small...Just the right size
Now getting into BIG PHONES that are hard for girls(i am not
sure if you are American or from overseas) but the
EVO/HD 2 was a phone that was not comfortable at all for me to use
with one hand and even with two hands it still felt HUGE holding it
Droid X was better but still felt big
Personally, I'd say get a Galaxy S Device but the Xperia/Galaxy S device size
of 4.0 seems to right niche for me when it comes to phone size
I want a Dell Streak but its too big