Can I call you back? <a href=" http://www.prisonersonthemove.eu/how-write-essays#apartament ">essay on tartuffe</a> Wireless charging is taking another step, albeit a small one, towards the mainstream. From this weekend, consumers with a wireless charging smartphone or tablet will be able to simply put their device down on a table and top up its battery when visiting a Silicon Valley Starbucks. Earlier this year, the coffee shop chain started testing integrated wireless charging technology in its Boston stores and is now rolling out the service to a second area of the US.