I watched almost the whole game on TV. Here are my thoughts.
Starters
Marbury looked disinterested. He has had a terrible preseason. Let's hope he comes back to life when the games count.
Marion looked very good. He doesn't seem to have lost any quickness with the added muscle. He spent a lot less time hanging around the three-point line and more time looking for ways to get involved.
Hardaway started this game and looked about the same as last year. Now that I look at the box score, I see he was 2-12 from the field. It didn't seem that bad while I was watching. He was less of a liability defensively.
Gugliotta started in place of Stoudemire. He looked the same as last year. He is a step or two slower than everyone else and has been reduced to a mediocre spot-up shooter.
Voskuhl looked good. He is a little stronger in his torso, I think. He seemed to be in better position on both ends of the floor, and he had a terrific recovery block early in the first quarter, drawing oohs and ahhs from the Staples crowd. He banged his knee early in the second half and left for the game, but it didn't look serious.
Bench
Johnson was extremely aggressive. Once again he led the Suns in scoring. He took some ill-advised shots (5-18 from the field), but in general he seemed to be letting the game come to him a little more. He also was more confident taking smaller opponents into the paint. If he keeps this up, it will help a lot.
Jacobsen was better than I expected, although still not good. I must admit that there may be some validity to the theory that his progress encouraged the Suns to cut DerMarr Johnson loose. He gets out of control too often, but he does at least go to the basket. I don't recall seeing him hit a perimeter shot, although the box score says he made one three-pointer. Perhaps that was at the very end, when I turned the game off.
Barbosa plays the game like it's soccer. He is everywhere on the court. He completely lacks playmaking skills and picked up a lot of silly turnovers and fouls. But he had more arc on his shot than when I saw him in the summer-league game, so at least there is a chance that it will go in.
Sheppard got a lot of time, as the center in the Suns' small lineup. He seems like a pretty good athlete and held his own defensively, not that he matched up with anyone tough. He didn't look to score much, but he did make a nice 15-footer when left open.
Koturovic got minimal time and showed nothing. Archibald got a little more time but still showed nothing. Both of them looked confused and unskilled. Trybanski did not play.
Weathers played in the fourth quarter, because the Suns were losing, so obviously Frank Johnson had to maximize the number of guards on the floor. He seemed quick and athletic enough, but it's hard to see him making the team.