Benald,
It depends on what features you find most attractive.
If size and sleekness is a high priority to you....none beats the SGT10.1. It may actually be a little thinner than the iPad2, and sacrifices nothing in the performance & display department.
If your okay with a thicker Android tablet, the Asus Transformer sports the same specs (Tegra2 Dual Core 1 Ghz, 1GB of RAM, 1280x800 resolution) and has a micro SD reader.
This is one of the 2 downsides of a SGT10.1 IMO.....it only has 1 propriatary port for I/O devices. You have to get an adapter to hook up USB drives, and other input devices.
The other is no expandable memory. Like the iPad, your locked in with the internal memory on board. With that said, you can always use a USB jump drive for additional file storage if needed.
So while there are more practicle Android tablets out there....nothing comes close to the "sexy" factor as the SGT10.1.