Leslie said:
One thing to be aware of with Mobipocket: you need to have earned $150 in royalties before they will pay you. If you have only one or two books, it can take awhile to get to that point.
L
A way around this annoying negative is to list your MP book directly with some of the retailers. That way, you can get your royalties quickly, and with no minimum. But for the widest distribution, use MP as your wholesaler. That way, all--or most--of the many associated bookstores will carry it.
The big problem with MP--and I have heard this from others--is that it is hard to reach MP customers without a ton of promotion. If you have a traditionally published best-seller, you'll do well. But if you are just out there in the digital cosmos, you'll get dribs and drabs. Kindle Editions outsell MP versions dramatically.
Still, all of my e-books are in both Kindle and MP editions and I suggest you do the same. That way, you pick up the occasional interested Icelander and those who are not yet Kindled. But I am no expert in all this. So trust, but verify.
Incidentally, when I did my own research I found that, of all the e-book readers out there, MP was the most popular. And I liked the Digital Rights Management (DRM) feature. But things move fast, and may have changed.