GWF now only gives one extra blow per turn, which dramatically affects the calculations below.
Cunning Artifice looks ok, but it has a four-turn CD

So, the hunt for the max hits from one hit or turn is now on again...
UPDATE: I got 14 from one hit, so theoretical max goes up to 52. edited below
This is a competition - who can get the most number of melee hits from a single talent? I'm only meaning in the main game, so i don't include saw butchers etc.
I've been experimenting and I've got 25 so far.
Obviously, it has to be an adventurer build:
Dual-wielding + reaving combat + flexible combat + gloves with double cripple ego (40%) + greater weapon focus + magical combat + psionic focus (or any TK providing talent)
my experiments suggest that the theoretical maximum would be 52 hits, because I can get 14 from one bump, and flutter would give maximum of 4 x 14 I think.
the 14 are:
main hand 2 (gwf)
offhand 2 (gwf)
magical combat on all 4 gives reaving combat 4
flexible combat 4 (gwf)
cripple gives another main plus off, so 2
that's 14 in total. you should be able to get more from a bump, but after hundreds of training dummies, I never got more than 14.
and I never get more than 25 for flurry despite the possibility of 4 times 14.
So, can anyone get more than this? I have an idea to boost it further, but it is tough to get all the ducks in a row

I'll try to post a screenshot to demonstrate, but my char just died. lol.
btw, I do about 20,000 damage on these hits.