Thanks all. I took the air cleaner housing off again and finally saw the "hole" - actually more of a slot I guess, and that's why I was confused.
I appreciate all the detailed info you guys gave about the way your bike ran. Even though the hose is missing, I am confident that what I am experiencing is related to something more serious than just that. Fortunately, I can get it started, and it will run - albeit crappy - well enough to ride it the 4 miles to the shop to get it looked at. I'll let you all know what it was once I find out.
7800 orig mi when purchased Jan 2011
Turned 11,000 mi Nov 2011
Taillight relocation kit
Chad's highway peg mounts
Otherwise, all stock
"But it's a dry heat - like the inside of an oven"