Zach Gage is one of my favorite game designers because he's really good at taking really basic game concepts that you're already familiar with, like searching for words or playing chess, and adding a weird twist that makes the end result simply phenomenal. This was the case with Really Bad Chess [Free], SpellTower [$2.99], and most of his other games. He's already taken on solitaire with the fantastic Sage Solitaire [Free], but moments ago just announced his next title: Flipflop Solitaire.
It's basically the foundation of Solitaire, but the rules shifted a bit to where you can stack cards up, down, or even both ways but you can only move stacks of a single unit. The thought is sort of breaking my brain, but like most Zach Gage games, I'm sure it'll make sense inside of about 10 seconds of playing it.
For more details on the game, and a brief slideshow that shows off more of how the game mechanic works, head over to the Flipflop Solitaire web site.

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