An anonymous tip off complete with photographic evidence has surfaced on Saturday, pointing to a new version of the Macbook Air that will come with a 13.3-inch chassis instead of the 11.6-inch version previously stated.
Engadget, whom the source contacted, says that the new design ditches the drop-down side ports based on the fact that it uses a long black hinge. Other claimed features include USB ports, Displayport and a SD Card reader.
This particular prototype, which can be traced back to April 2010 according to Apple Insider, also sports a Core 2 Duo SL9400 processor. We'd expect it to come with the same unibody design plus the single mouse button that comes standard with Macbooks.
There are also rumours that there will be two versions of the MBA including a smaller one with a 11.6-inch screen and a smaller pricetag.
The bigger version is likely to have a bigger battery (and up to four battery compartments) and there are rumours that there will be a new SSD card-based storage that will allow Apple to shrink the size of the MBA even more.
All this is tied to an event to be held next Wednesday by Apple entitled, "Back to Mac" where the new Macbook Air laptops are expected to be launched.