I've seen some post lamenting about the lack of 3G support. Asus might release TF201-G (like what they did with the original transformer) in the future. So either you wait or hope someone from XDA could port drivers for 3G usb dongles. A couple of 3G USB dongles have been demonstrated to work with the original transformer. Plus, since the drivers are just linux kernel modules, I don't see why it would be difficult for devs to get the drivers which are currently working with TF101 to TF201. Of course, you would have to get the keyboard dock for the USB port though.

Anyway, back to the transformer TF201. I'm a little disappointed with tegra 3's ULP Geforce though. Apart from the dedicated hardware that could finally fully offload decoding of high profile 1080p H264-encoded videos, I expected a wider margin in GPU performance improvement compared to the iPad2's PowerVR SGX543MP2. I'm basing this off anandtech's review. (Yes. I know there is a difference in 300k pixels between the iPad2 and the TF201. But I expected the improvement to be big enough to offset this minute difference). Anyway, the review is quite preliminary and I might be wrong considering that better drivers might be included in the ICS release.