My red flag alarm is screaming right now. I hope they have some amazing fraud protection here.

It's way too easy to compromise a twitter account, I'd to have that attached to my bank account.

I really like stuff that creatively combines two worlds for sake of simplicity. Not sure if this particular one is going to take off (security/fraud concerns etc.), but I do think that these combinations are all blips on the way to an inevitable, universal, and simple system that lets people take any number of actions without having to context switch (e.g. telling your mobile device to send money to a friend, make a dinner reservation, and share that you paid back your friend and are going to dinner).

Sucks that we have to wait for it.

It looks like someone else built this almost 3 months ago: https://github.com/nmanousos/pounddwolla

I'm assuming the receiving entity also has to have an account with dwolla, or is at least instructed to create one to receive their $?

This seems somewhat Hashpay.com inspired: https://twitter.com/ffloat/status/269959712290791424

To your friends in the USA. As Dwolla is USA only.