A friend of mine just ordered the ETI-1, even though it is supposedly not available. It uses .imp as its native file and has color. It is the next gen from your unit. He paid $400 for it. Send me a message and I will have him contact you, or perhaps add to this thread.

He was told it should arrive next week.

Menu Buttons
Displays several options and can vary depending on whether you are reading an eBook Edition, looking at the eBookshelf or browsing the eBookstore. The Menu button also has an on/off option.

Shortcut Button
Allows you to set a shortcut to a specific feature/function on your eBook.

Brightness Control
Turn the knob to adjust the brightness on the screen. This affects the brightness of the background, not the text or graphics.
Contrast Control
Turn the knob to increase or decrease the contrast difference between the background and the text or graphics.
Page Forward/Back
Toggle Switch
Use the right edge of the switch to page forward and the left edge of the switch to page back.
to highlight text, and Search to look for a word or phrase.

Bookmark
Bookmark a page simply by tapping the upper right corner.

Touchscreen
The back-lit 6.75" x 5" color LCD touchscreen, with adjustable brightness and contrast controls, enables comfortable reading anywhere, even in the dark. Use your finger to touch the icons and links to activate the many features and functions, or use the stylus that is stored in the top of the device.

Page Navigation Bar
Skip through your title easily and quickly. Touch the bar and it displays the number of your current page.
The brightness and contrast controls are located on the side
Brightness Control
Turn the knob to adjust the brightness on the screen. This affects the brightness of the background, not the text or graphics.

Contrast Control
Turn the knob to increase or decrease the contrast between the background and the text or graphics.

Stylus
Use the stylus like a pen to select items on-screen. To use, simply push in on the stylus and pull out.