Yes!  We've developed a mobile version of Skoach which is compatible with many mobile devices, including iPhone, iTouch, Android, and many Blackberries.  Just navigate your mobile browser to

http://app.skoach.com/mobile.html

Even if you don't use Skoach Mobile, you can still receive appointment reminders via SMS or email.  You can send new tasks and appointments to your skoach page via email.