I tried LinkPopLite on my iPhone 3GS and I find your game is good
Concerning the gameplay itself, I had to try the games about 3 to 5 times before getting in the feel of the game. Perhaps because I'm not big fan of "3 colors matching games", what your game is not but I thought it was at a first look And I did start in Pop mode, as Puzzle mode was easier for me to get the mechanics of the game.
At level 4 I wondered how the gameplay could evolve, and I was answered at level 5 I hope there will be a lot of new blocks like this modifying gameplay little by little.
Technically speaking, it is well designed and polished, pleasant The interface, animations and transitions are great. I think I'm at 20 or 30 fps max. On the 3GS, reactivity is correct although there is a very little "lag" after each touch on a tile. It's ok to play with, but I wonder if it's like this in the gameplay and/or the JS wrapper or the perfs of HTML5 on the 3GS.
Anyway, I would put your game in the featured games of C2