I love my Glock 20 also.
Powerful, accurate and easy to carry. 
/jasper
I like my Glock 10mm. :-)
"I like my Glock 10mm. :-)"
As do I. It's nice to have 15+1 rounds of .41 mag-class argument stoppers on tap. Having said that, the only reason that me and the missus have SIG 229s in .40 is that that was the pistol and biggest caliber with which she was quick and accurate. She just didn't feel as comfortable on a first-shot basis with a .45. So we went for matching SIGs in .40 as the best compromise. I also liked having the option to switch to the .357 SIG round with a mere barrel and magazine change. Some folks think pretty highly of the .357 SIG, but I haven't been able to test the hypothesis as yet.
The 10mm is a great round - manageable, and about 80% as powerful as a .44 mag.
My Glock 20, with 15 round mags, is plenty of firepower.
They may need to mak some small modifications to make it into a miliary gun, but I don't understand why the military hasn't jumped on that round.
I love my Glock 20 also.
Powerful, accurate and easy to carry.
/jasper