Rumor: MacBook Air downsized details previewed

As the clock ticks down toward today's Back to the Mac event, Engadget relays some insider info from a trusted source regarding the capabilities and specs of the all-but-certain MacBook Air 11.6" form factor subnotebook.

The details:

• 2.13GHz Intel Core 2 Duo CPU (with a 2.33GHz BTO option). No surprise that the Core i3/i5 was too much oomph for this configuration.

• 2GB of memory

• Mini DisplayPort, USB, and SD card reader along the left-hand side and USB and power on the right. The addition of the 2nd USB port is sure to cheer the hearts of would-be buyers.

• Buttonless trackpad like the rest of the line.

• About the same thickness as the current MacBook Air.

• A black power key now sits immediately to the right of a smaller eject key on the MBA's keyboard -- the round aluminum power button is gone.

Engadget also says their source could not lock down the rumored SSD-on-a-stick storage changes, so that remains mysterious. Apple Insider and Cult of Mac originally reported the likelihood of the smaller MBA.

We'll be live in just about 2 hours with our coverage of the announcements. See you then!