I have no idea why anyone would need this, but either way....
Meet the Little Printer. This adorable little guy from design firm BERG is a smartphone-controlled micro printer that can print anything from designs to receipts to to-do lists. It's scheduled for a 2012 release; no word yet on its price or what to do about ink or paper replacements.
Next in the line of "welcome to the future" products, we have the needleless drug injector developed by researchers at MIT. It uses pressure and force so localized that it's able to deliver medication at precise locations no wider than the proboscis of a mosquito. And you won't even get an itchy bump afterward (I hope).