It seems like nearly all the phone makers are doing it. Take the latest flagship release, add some welcome (but relatively minor) technical tweaks, slap an extra S on it and release to an adoring public not much more than six months after the original hit stores. Sony Ericsson's Xperia Arc is the latest (but certainly not the last) to undergo said refresh. The new Arc S appears identical on the surface, still carrying the stylish curvature that wooed us the first time round. Internally, most of the parts remain the same as its predecessor, aside from a bump to a new CPU, a 1.4GHz Qualcomm chip. Alongside the minor hardware change, this is the first Xperia handse
