Neat, could see myself using this.

Couple of things:

- After placing a timeslot I went to drag it up and down. Instead it created another timeslot within the first one. Having used Google calendar a lot I kept subconsciously trying this: http://i.imgur.com/G9SlRAh.png

- Showing timezone is great but the dates are in the US MM/DD format. For everyone else this really throws us, especially when the date is ambiguous. DD/MM really should be the default outside the US. Also perhaps an option for the ISO YYYY-MM-DD format.