Not wanting to be negative or anything - Trezor is definitely a great improvement on security since our greatest worry right now are malwares - but we should note that its currently configuration makes it vulnerable to the "evil (and tech-savvy) maid attack".
Somebody tech-savvy enough with physical access to your place (a maid, a boyfriend/girlfriend, a roommate etc) could deliberately infect your computer while you're not around to get the PIN. Even a hardware key-logger would suffice. Once with the PIN, s/he only needs to steal the device.

I don't think that's a major risk, in the sense that it won't happen frequently, but it's worth noting anyway. Some people can't afford to fully trust those they share their living space with. Think college students for ex., particularly computer science college students who happen to share their room with people who were just put there by the residency administration. They barely know each other...

caveden, it's small enough (physically) to fit on a keyring I guess. So such a person would just carry it with them.

http://www.bitcointrezor.com/news/raspberry-pi-shield-developers

no need comment
btw who else is going to ohm2013?

If by offline transactions with QR codes you meant this below, it has not been implemented yet, neither with QR codes neither with NFC.
https://bt.irlbtc.com/view/230010.msg2424481

You mean like this: https://bt.irlbtc.com/view/210371.0 ?

I love the idea and the fact you moved your ass to make something happen Btw, I know it's hard to make a good commercial video but we can see you're reading I think you don't need to make an Apple-like-commercial-things, just try to be yourself!

Good product, will follow and buy.

Wish you the best,
Patrick

It's even easier to build in a cross-arrows like that founds on the gamepads
  ^
<  >
  v

and then tap a sequence like a good ol' Mortal Kombat fatality combo: >>^>v<<> and voila! You've authenticated TX on the Trezor device. No key-logger fears anymore.

Sorry to disappoint you, but the button layout will not change. At least not in the first batch. :-)

This is exactly what I am worried about. I recognize the fact that some people prefer comfort when entering their PIN as opposed to an additional security precaution, but wouldn't it be beneficial to allow both methods of PIN input - on the device and/or the computer keyboard? The button layout of the Trezor makes it clumsy to punch in the PIN, but far from impossible. Many of us would sleep easier knowing our security could not have been compromised because of an infected computer. At the same time, those who prefer the comfort of their keyboards can simply not utilize this feature and enter the PIN as it was originally planned by the developers. It's really just a matter of modifying the software and I urge the developers to at least consider it.