This is the one – Bricasso Review

If you are a fan of Legos at all, this app is almost exactly what you want. If you can't afford the dollar, put one of your kids up on eBay, because the other kid will love you forever for buying [I]Bricasso[/I]. The controls are close to perfect. My 4-year-old took to it immediately, with no instruction whatsoever, and built the coolest wintery wonderland I've ever seen. The reason I say "almost" is due to the fact that it could use some additional features, so please buy the game so the developer can update it accordingly. You won't be sorry.
Review by Djflippy on Bricasso.