Someone just sent me the link to a very interesting site called the ESD Union. ESD stands for Electronic Sales Distributor. If that term doesn't ring a bell, the names Handango!, PalmGear and PocketGear probably do. These sites are ESDs and sell PDA software to our community of handheld enthusiasts. But did you ever stop and consider what type of percentage they are raking in for this service? It just might surprise you how little some developers are getting for their hard work.