Minecraft World Viewer is an Android viewer / concept design for Minecraft that lets you: use your own 1.3 beta levels, temporarily build and destroy blocks, sensor steering, crouch & jump, ghost mode / fly mode, all on your Android phone! even works on low end devices(requires android 2.1 or higher). more features to come
Also has an option to (if user want) get or download minecraft world maps, when an minecraft map is downloaded in our download directory, maybe you may need an application as winrar or something like that to uncompress files.
The program works very nice.
If you have maps downloaded in your computed or maps who you played from version 1.3b of minecraft you can copy them to your sd android's device and hittin on scan worlds button you may choose them to play in your table or phone too.