Re-use; buy; build
> The more mature SideSync, launched three years ago, allows the user to handle a number of phone tasks without leaving the PC: initiate and answer calls, set alarms, and share files. So there's plenty to do.
It's an odd decision making process at Microsoft: we'll re-develop about half the features of SideSync (thereby doing just enough to put them put of business in a couple of years) but we won't buy them out and give our users a full-featured product.
User outcome: the MS version is not good enough to sway most users; those already swayed and willing to pay have the rug pulled from under them.