($24) A4o as TP BvB, SB keeps betting

[Pocketbear]

Full Tilt Poker
No Limit Holdem Tournament
Blinds: t60/t120
6 players
Converter

Stack sizes:
UTG: t2795
UTG+1: t1750
CO: t2250
Button: t1985
SB: t2660
Hero: t2060

Pre-flop: (6 players) Hero is BB with A[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/diamond.gif[/img]
4 folds, SB calls t60 <font color="aaaaaa">(pot was t180)</font>, Hero checks.

Flop: 5[img]/images/graemlins/spade.gif[/img] 6[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/diamond.gif[/img] (t240, 2 players)
<font color="#cc0000">SB bets t120</font>, Hero calls t120 <font color="aaaaaa">(pot was t360)</font>.

Turn: K[img]/images/graemlins/diamond.gif[/img] (t480, 2 players)
<font color="#cc0000">SB bets t240</font>, Hero?

The villain is somewhat of a thinking player. Looks like he's betting the turn for value, no?