A property purchase made in 2012 when smartphones were still a novelty and Instagram had barely turned two years old is now at the centre of an online storm, because the Indian American millionaire still doesn't have his home. Sabeer Bhatia, the Silicon Valley entrepreneur best known for building Hotmail, has gone public with a grievance that will sound painfully familiar to thousands of Indian homebuyers: a flat booked over a decade ago that simply refuses to materialise.