-> It's nothing strange, or shady, but if you took the time to READ the accompanying information, you'd see that the original etam that DESIGNED Tiny Personal Firewall LEFT TINY SOFTWARE and made their own company, Kerio. The two products will slowly migrate apart, as Tiny seeks to head more toward a shareware/pay firewall, and Kerio seeks to keep it FREE.
-> All you had to do was read a little. I commend you on the research, but if you read the website itself, you'd have had the whole story.