Nikosandros
Golden Procrastinator
Well N=<19 since a bard can have up to 19 multiclass feats (17 multiclass feats plus the bard epic that gives 2 multiclass feats). Since currently N=16 counting swordmage but not artificer (sho doesn't yet have a multiclass feat) we could possibly have a bard with a multiclass feat for every single class
You're entirely correct. The "feat cap" won't have any effect until PHB3 is released...