1) His awake time is never more than 1 hr -15, and I've gotten very good at reading his cues. He turns his head from side to side, opens his eyes wide, and fusses. When I put him in in the morning, he puts himself right to sleep. The rest of the day he fights it: won't let his eyes close, becomes agitated (squirms and cries), and basically gets himself worked into a full-out cry. Many times I have to have him nap in his swing/seat because of the reflux, and he starts holding his breath before his little butt even touches the seat.
2) In the beginning, for about a month, when he'd wake I'd hear him fuss/stir and I'd run in, retrieve his binky (he's found his fingers now), and do shh/pat and rub his forehead. It works for about 1.5 minutes and then he's awake again, and this continues until he's full-out awake and ticked off. Now, I let him fuss a minute (sometimes he can put himself back to sleep and I seem to be a disturbance) and then I go in, try a variation of sh/pat (he doesn't much like the patting so I rub his belly), and if he isn't calming I just take him out and give him a little extra activity.
3) He is on solids because of his reflux. He just can't hold down milk on its own, so the doctors recommended I try cereal, and then a bit of fruit mixed in with it. For both of these meals he has about 2 tablespoons of cereal with about 1/3 of a jar of baby fruit, and then I water it down a bit so it's not as thick or sugary. He gobbles this up, and then I give him some milk (about 10 minutes of BF). The napping has actually improved with this, and it does help him keep everything down.
4) The "catnap" is not in his room. At this point in the day, if I even walk past his room he cries (this is not my imagination!). In fact, he's pretty much against being put down at all and the only thing I can do to settle him is go out for awhile. It had been working to just sit outside, but now it's too cold so I actually take him in the car. Not every day, but on days when there's just nothing else I can do. I would have called it his colicky time of day, but now I see he's just tired and fighting the nap.