Only have 20 hands on villain, no real read.

Full Tilt Poker
Pot Limit Omaha Ring game
Blinds: $0.10/$0.25
5 players
Converter

Stack sizes:
UTG: $10
CO: $25
Hero: $28.80
SB: $8.55
BB: $27.55

Pre-flop: (5 players) Hero is Button with T 2 9 J
UTG (poster) checks, CO folds, Hero calls, SB calls, BB raises to $1.25, UTG folds, Hero calls, SB calls.

Flop: 8 9 T ($4, 3 players)
SB checks, BB bets $4, Hero calls, SB folds.

Turn: T ($12, 2 players)
BB bets $12,

Now at this point, I have ~$23 left. Should I flat call since he probably has aces and might be on a bet/fold line, or just shovel it in now anyways.
Does that change if say for instance we both have $100 behind?

I don't think it matters whether you call or shove here, he's going to be doing pretty much the same thing either way. If you shove he's getting 3.6-1, so he will call with any kind of decent hand. If this is a pure bluff he will fold. The same thing will happen if you call and he checks the river. Either he has a hand and will pay or he doesnt and you just get the pot right now, dont think any play on your part can effect it really. I would probably just shove now so I wouldnt feel as bad if the river can an ace and he made aces full.

This looks like a straight to me.

He isn't bet folding here. A bet/folder bets less.

I say push.

In this situation, I agree it's an instapush. What about if we're deeper?

In that case i raise , not repot.

You don't want to give a cheap river to AQJT or KQJT or something.

Agree. Now let's see you post his straight flush

Full Tilt Poker
Pot Limit Omaha Ring game
Blinds: $0.10/$0.25
5 players
Converter

Stack sizes:
UTG: $10
CO: $25
Hero: $28.80
SB: $8.55
BB: $27.55

Pre-flop: (5 players) Hero is Button with T 2 9 J
UTG (poster) checks, CO folds, Hero calls, SB calls, BB raises to $1.25, UTG folds, Hero calls, SB calls.

Flop: 8 9 T ($4, 3 players)
SB checks, BB bets $4, Hero calls, SB folds.

Turn: T ($12, 2 players)
BB bets $12, Hero raises all-in $23.55, BB calls all-in $10.3.
Uncalled bets: $1.25 returned to Hero.

River: 5 ($56.6, 0 player + 2 all-in - Main pot: $56.6)


Results:
Final pot: $56.6
Hero showed Td 2c 9c Jd
BB showed Ac Qd As 8h

When allin is less than a minraise it makes no difference.

Oh, and he had a flush draw, bottom pair, an overpair AND a straight draw. In NLHE he would be favourite over anything.