There's wisdom there...
Let me see.
1 - More or like something like taste, I think. But then, the 3 and beyond would help the fighter to get those levels. More or less like pure taste...
2 - Oh, sure, this is basic, and I think I didn't make it clear. You must have all the pre-reqs.
3 - The idea is good, but I think it goes against the idea of the Wild Card feats. Why?
Because to me this whole idea seems to help the fighter complement his choices of feats. of course ther will be those dorks who will always choose the same feats, sure, but the whole idea behind this is to help the fighter get to some other situation. You know, at level 8 he is supposed to have three of those wild cards feats, and he never actually used a bow in the adventure, but now's the time to use one (don't ask me), and he could take Point Blank Shot and Precise Shot, feats that he would NEVER get normally, and he could at least fire it without having the nasty -4 to shoot into melee. He still would have his only one left wild card feat of the day. With that maybe he could get, don't know, Two Weapon Fighting in a moment that this could help, or maybe even improved trip, or whatever.
I think that this whole idea is to give acess to some "you would never get those otherwise" feats. This could potentialy double the number of feats (for thoe who would trow the versatility out of the window), but then how could this make the fighter overpowered? He would have more feats, but poor fighter, needs all help he can get. And then, since the good feats still need bba and fighter level pre-reqs...
But anyway, good points Set.