Your Personnal assistant to manage your DSLR PalmDSLR is a freeware which lets you control your Canon DSLR camera from your palm.
It has been design for the management of Astronomy Photo but it could be used in any other situation where a timer is required to take series of photos.
At last PalmDSLR allows you to record all the caracteristics of your shots to be able later to formalize your works. Designed by end-users
PalmDSLR has been designed keeping end-users concerns in mind:

Portability to let your heavy stuff focused on your camera and lens not on your laptop computer,

Compatibility with older palm (at least PalmOS 3.5) to be able to create cheap and more powerfull alternative than Canon cables,

Efficient design:one screen to centralize everything, no setup required.
Because this program is Free, Canon DSLR and palm end user should think to take benefits of PalmDSLR.
Ready to go cables exists to let you reuse your existing Canon material and by the way lets you create a versatile solution that could fit your needs in many situations.