Please use a hand converter.
UTG with AKo, you're looking to raise to isolate to at most 2 other players, whatever the table dictates to get that done. It appears as though 2xbb is not enough, as you get 3 callers.
Pre-flop pot is $.80. Pot is opened with a $.10 bet, or 1/8 pot - very weak. It's called, so now you have two players at least a little interested in the hand. You raise $.2, still a very small fraction on the pot, very weak. Unlikely this will cause any folds from any reasonable hands. It's called around until the big blind (who saw the hand cheaply with odds) hammers a real bet in there. His intentions at this point are read-dependant...could be a take-down manuever, but that's unlikely given how many people are interested in this hand. More likely he's happy to see the interest and wants to get his money in. This should make you cautiously optimistic - you have TPTK on a fairly danger-free board. Only hands of true concern are 88, AQ, A8.
You slam over the top all in here, escalating the hand from a sissy fight to a slugfest in no time flat. I like this play. You have a strong enough hand that making this bluff-esque play will likely get sheriffs to call with middle pair+flush draw or an un-made pocket pair. If any of the opponents in the hand are solid players, I would be very cautious...but that doesn't happen too terribly often at these stakes, so safe to assume they suck until proven elsewise.

Overall, I disagree with the panzy betting. I like the push move on value.