That being said, there might be someone out there who's been contemplating building a task app business, and this would give them a really nice head start, product-wise. Or, perhaps it would make sense for a larger company (OmniGroup? Panic?) who can devote substantial marketing resources to it.
Nonetheless, I wish him the best of luck. He's a likeable guy and has obviously put a ton of love into this product -- it would be nice to see him enjoy some monetary return on his efforts.