I was surprised at how easy it was to put the new one in. Plug it into the computer along with your phone and copy all of the app data (and pictures, etc. you want) onto the new one. Unmount the one in the phone, and put the new one in.
Not only do I now have double the space, but my phone is much snappier. I used the same class and brand, so I figure it must be the way the app data was written to the new one. Instead of apps randomly installing files while downloading/saving on your phone, I think the one way ticket across platforms put them in nice and neat.
Has anyone else experienced this? Is my assumption off the mark?