Just picked up the Timbuk2 'Steve Sleeve' at Tekserve in NYC.

Seems like they are the sole retailer stocking this (the Timbuk2 website still gives a shipping date of July). Very much a sleeve (no padding/protection), snug fit - priced a little steep at $49 - but has a "must touch"/"must have" quality (gets me every time...). Sold packaged in an 'interdepartmental envelope' - which they encourage you to use/re-use (as with the website - the sleeve is marketed as a 'green' product).