Always test your ebooks on the target devices. To make your life easier, make sure you get a device with the Bluetooth connectivity option and a computer that supports it. I use a MacBook, which has it built in, a lot of PC laptops have it too. But if you computer doesn’t have it, use a USB Bluetooth dongle. Make sure you buy one that comes with the drives for the operating system you are using and you’re set.

For phones/PDAs that do not come with Bluetooth, there is always infrared (IrDA) or a direct connection via a USB cable. Make sure you get the one with the matching plugs or use the one that came with the phone. You may have to install a piece of software that will let you communicate with the phone, but some phones can work in USB storage device mode, that does not require additional software.

If all of that fails, you can always use a memory card and move the card between your computer and the phone/PDA.

Personally, I prefer to use Bluetooth. No wires, no cards. Just remember to keep your phone/PDA on a charger if you do a lot of transfers as they will drain the battery.