It's not a "viable" model for the /developers/ involved in the Humble Indie Bundle. Not in the sense of pricing for /new/ releases, at least.
However, each of these games have been out for sufficiently long that having people name their price now is mainly extra frosting on top of an already well-decorated cake. It's a tiny bit of extra market penetration /after/ the game's already made an impact - along with some goodwill towards deserving charities.
However, each of these games have been out for sufficiently long that having people name their price now is mainly extra frosting on top of an already well-decorated cake. It's a tiny bit of extra market penetration /after/ the game's already made an impact - along with some goodwill towards deserving charities.