Groupon CEO regrets selling stock via groupons "I had no idea that selling something for 1/4 its normal price was such a shitty idea. Who in their right mind would ever use this to sell anything?"

Oh also, they say they want to make transistors which use quantum interference to shut them off, not an electric field effect. In this case you don't need a band gap in the same way. You make a ballistic device (on), and then you apply some potential to the edges to mess up the quantum states so they interfere and the thing insulates. "This means that the way we will be doing graphene electronics will be different," he explained. "We will not be following the model of using standard field-effect transistors (FETs), but will pursue devices that use ballistic conductors and quantum interference. We are headed straight into using the electron wave effects in graphene."

From the link: "there is an important distinction between the graphene transistors that we demonstrated and the transistors used in a CPU. Unlike silicon, graphene does not have an energy gap, and therefore, graphene cannot be "switched off," resulting in a small on/off ratio." One of the issues with graphene is it doesn't have a band gap. You can create one if you can successfully dope it (unlikely), or if you can put it into a very narrow by relatively long shape (say 2 nm wide by 50 nm long). Once you have a band gap, you can turn it off completely.

I don't think T-Mobile had much choice in the matter did they? Didn't they have to go with AWS because all the regular 3G spectrum was already spoken for? I wonder what this will mean for the future of the AWS band and its phones. A lot of smaller carriers around the world were only able to get AWS spectrum and as a result are very limited in their phone selection (no iPhones for example). Either this is viewed as the death of a 34 million subscriber AWS network, thus killing any hope for an AWS iPhone, or it is viewed as the creation of a 130 million subscriber AWS network, increasing the likelihood of seeing AWS versions of more phones. It depends on AT&T's strategy and whether or not they push for AWS devices and use the network to offload current congestion or not. http://www.wifitalk.ca/uncategorized/att-acquires-t-mobile-usa/

Ah. I haven't kept up with the progress in the past several months. I just was impressed with the Cu CVD method out of Korea and they mentioned a lower solubility in Cu than in Ni which resulted in fewer C layers upon cooling. That was just in a preprint though.

This post is correct. I worked with exfoliated graphene (although we used a different type of tape to nitpick) and it had excellent electronic properties. The SiC method produced graphene-like material, but it was, until recently, not very certain that it was in fact graphene due to such strong bonding from the substrate layers. The carbon/copper solute -> freezing / CVD method looks promising.

Ah, I seem to remember that change being made.

Absolutely nothing. This can easily be done with Skype, Fring, Truphone, Bria... There are many options. This is what the comment referred to.

You can kind of get google voice in Canada with a workaround. It's not pretty and not exactly perfectly usable, but it can be done. The free text messaging is nice, and free long distance is okay if you don't care about receiving calls to a US number. You can also get the app in Canada quite easily with a very simple workaround.