Espesso is here.
No, you're not reading incorrectly and I didn't make a typo. Espesso is a creation of El Bulli chef/alchemist Ferran Adria and it is solid coffee. It is not frozen, but is made by combining "espresso and an ingredient [Lavazza, the company offering the product,] won't divulge, combined in a pressurized canister and left to set for 12 hours." The product is then sprayed out into cups, where it is so thick that it can be turned upside down and needs to be eaten with a spoon, much like a mousse with a strong coffee aroma. It is available in espresso, espresso macchiato and cappuccino flavors and the latter two flavors use milk that is solidified in much the same way.
Espesso was introduced at some locations in Europe in 2002. For the moment, it is available in three Chicago-area coffee shops - the only stores that Lavazza runs in the US - but if it is successful, we could see it spread to other coffee shops around the country.
Update: Dominic Armato, one of our busiest commenters, said that he had a chance to try this already at one of his local coffee shops. He noted that the espresso flavor "was POTENT. It had sort of a dense, wet mousse consistency" and that the macciato version, made with half-milk, half-espresso, was the best of the three espessos he tasted. Take a look at his full report, with great pictures of the product.