My netbook comes with two USB ports and an external port for connecting in a projector.

FORBES: In Praise Of...The Netbook?

There is an HDMI port for connecting to a display with just one cable and up to 8 USB 2.0 ports for connecting to printers, external storage, digital cameras and more.

ENGADGET: Acer unveils space-saving ME mini tower and XC desktops for (low) power users

The two 5W-powered USB ports allow users to connect even two bus-powered external hard drives and also function as a backup battery for two iPads.

ENGADGET: Hyper debuts iUSBport mini, 2 and HD cloud storage and streaming devices (hands-on)

There are a total of four USB ports (one on the front) which comes in handy for external drives and maybe even accessories down the road -- althoug not surprisingly, the Logitech USB camera for the Revue doesn't work with the Sony.

ENGADGET: Sony Internet TV Blu-ray Disc Player with Google TV review