Raja Kapur continues to accept payments via mytether.net for his product, MyTether, which he seems to imply is currently functioning and for which he offers free upgrades.

Upon paying and being granted access to the donor forum, one finds that the project may have been abandoned and that the software might not work as advertised (or at all, for that matter).

Many users call it a scam and want their money back. My Paypal dispute was opened for quite some time and Raja Kapur never responded nor refunded my money as requested.

As far as I'm concerned he is defrauding his customers, though that is just a matter of opinion.