I just found this in the market yesterday. It is a home replacement. It seems smooth and quick so far. The coolest part is it supports up to three themes at the same time. By swiping up or down you can change your theme. You can also add screens right and left, it starts with 3. It seems to support most themes. This one is fun give it a try. There is a lite version in the market also. This is my favorite so far. Though I do like the cube transitions in GDE.