Best Puzzle Apps of 2011

It's almost impossible to keep up with the 100 new puzzle apps that get released each week. Below is a simple list: the best, most fun puzzle apps that I played in 2011. Most of these were brand new in 2011. Some came out earlier. What distinguishes a Best Puzzle App from Honorable Mention Puzzle App? I like them all, but the Best Puzzle Apps are the ones I've spent a lot of time on!

Alphabetical lising:
2Bik's Cube
Align It!
Aqueduct
Beam Puzzle
Blockado
Boxat
Boxed In
Continuity 2
Cubetastic
Deadlocked
Duality
Frogiz
Full House
Galaxy Express
Hi Lo Sudoku
Kunundrum
Monorail
Mortal Coil
Mystic Glyph
Numeric Paranoia
Quaz-x
Qvoid
Solitaire Chess
Strimko Gold
TJam
Tripevo
Tumblox
Witty Bump