The Urban Decay Naked Palette was launched June 29th 2010 and is now completely SOLD OUT from all stores. You can get your hands on one for a double if not triple the price on Ebay and . This palette is like no other Urban Decay palette which is why it is so unique and highly seeked out.
NYX released a similar palette, the NYX Nude on Nude Palette but for less than half the cost of the original Urban Decay Naked Palette! See pictures, swatches, and prices below and compare.

The NYX Nude on Nude Palette is a similar dupe to the Urban Decay Naked Palette that is easily avalible and in stock, when the Urban Decay Naked is out of stock and no date of returning soon.

Urban Decay Naked Palette originally ($44.00) (Sephora) contains twelve shades: eight neutral, six permanent and existing shades, one repromoted shade, and five new shades.
The palette includes:
Virgin (satin chamois),
Sin (champagne),
Naked (matte buff nude),
Sidecar (cocoa with golden sparkle sheen),
Buck (matte nutmeg),
Half Baked (subtle, lustrous bronze),
Smog (deep coppery bronze),
Darkhorse (bronze patina),
Toasted (rich copper),
Hustle (plum brown satin),
Creep (onyx with gold sparkle),
Gunmetal (gunmetal gray with silver glitter).
The final piece is a double-ended 24/7 Liner with Zero (black) on one side and Whiskey (creamy rich brown) on the other.
AVAILABILITY: NOW @ Urban Decay and Sephora

NYX Nude on Nude Palette ($11.00) contains nine neutral eyeshadows, plus two complementing lip colors.
This palette includes: pale nude beige (semi-matte finish), semi-sheer mushroom taupe with warm undertones (light shimmer), cool-toned dark brown (satin finish), peachy copper (frosty/metallic sheen), muted copper (frosty), semi-sheer dark gray brown (light shimmer), brightened copper (frosty), browned gold (frosty), and warmed medium-dark chocolate brown (light shimmer). It also contains a reddish rose with lots of shimmer and sheer, medium bubblegum pink for lip colors.

Here are side by side swatches of both palettes and see how similar they match up! Photo:http://www.makeupandbeautyblog.com/