Development squeeze

This one I played yesterday (rotated for convenience). It's very easy to squeeze your opponents on this hand, but it just doesn't come up very often. According to a source on the bridgebase forums (= Ben) it's called a "development squeeze". Here's the hand:

Dealer: East Vul: None Scoring: imps	♠ 3 ♥ KQ83 ♦ AKT97 ♣ JT4
♠ J54 ♥ J765 ♦ 864 ♣ 983		♠ AQ9762 ♥ A2 ♦ QJ5 ♣ Q6
	♠ KT8 ♥ T94 ♦ 32 ♣ AK752

The bidding went:
1♠ - 2♣ - pass - 2♠*
pass - 2NT - pass - 3NT
all pass

So I'm in 3NT, and LHO leads ♠4 to the Q. You can't hold up, so you take ♠K immediately. Now what? You can play on the double ♦ finesse, but the odds are against us because of the opener on the right. The only real alternative is to play on ♣ first and hope that suit behaves. If that's the case, you have 8 tricks and perhaps some possiblities for a 9th.
You continue a small ♦ to the Ace and let the ♣J run. RHO is smart enough not to cover immediatly, but you're still playing the odds. When the ♣J holds, you have only 1 chance of making 5 ♣ tricks and that's if they split 3-2. You're lucky and continue to play off all your ♣s.
On those ♣s, RHO gets into "trouble": he has to keep ♦QJ or he gives away 3 tricks, and has to keep ♥A or I get 2 tricks for free. The only thing left to do is discard ♠s, which are high (but he doesn't know that for sure). Because of these discards I can count out the hand, and play ♥ to the K without fear, to develop my 9th trick.