Here is a clever line of wireless chargers that can charge your smartphone from under your desk. ENERQi has a charging range of 40mm, so you won’t have to make permanent changes to your desk to use this. ENERQi simply attaches and hides under your desk and can handle many popular smartphones on the market.
ENERQi offers wireless charging at 10 watts. A ‘nano” version of it is going to be available with a range of 15mm (ideal for glass table-tops). Expected to ship in April. More info is available here.