newegg offers the refurbished Apple Digital AV Adapter
, model no. MD098ZM/A, for $19.99
with free shipping
. That's tied with our mention from two weeks ago and $15 under the lowest total price we could find for a new unit. It's compatible with Apple iPhone 4/4S, iPod touch 4th generation, and iPad 2 2nd and 3rd generation. It mirrors whatever's on your device to your HDTV or HDMI-compatible display in up to 1080p HD.
A 90-day warranty is supplied, although it's unclear who backs it. Also, an HDMI cable is required, but not included.