I commute mainly on a Honda CBR motorcycle, but a couple times a month I use a Fuji Tread or a Torker U District (fixed gear). When I commute on my Tread/U District, I carry patches, extra tube, CO2, mini pump, chain tool, Allen keys, and Surly Jethro Tool (as the Torker does not use quick releases).
At any rate, I'm not fooling myself to think I'd shave a lot of weight with the stand, seatpost, pedals; it's more what I'm used to riding with. I'm gonna commute tomorrow on the Air and will have a better idea of how it handles. I have to say it was a chore to put the battery in the down tube, but figured it out. I hope it's not a big deal when I park tomorrow at the office.