John, I think I know what may have caused some confusion. I used the term "perks" to reflect the differences between what is offered to customers of Sendero as opposed to those of PDI. For instance, the 30 day trial of GPS 3, the chat room for Sendero customers (which was recently opened up to anyone interested in GPS) and the availability of the Earthmate receiver. Perhaps "perks" was a poor choice of words. <smile> That being said, I guess I'm still confused as to what the relationship between Sendero and PDI is. Tne way I understand it, PDI created the BrailleNote, Sendero created GPS (for use with the BN) and together they form a partnership to make sure one is compatible with the other. Lisa