Palm Treo 680
questions about some features
1. What formats of video can it playback? (like video put on an SD card)
2. Is there any size limit to the SD cards?
I believe however that in order to playback video you need third party software to view them. Pocket tunes does not offer video playback. I am not 100% sure however.
As far as the size limits on the SD cards I can say for sure it will take up to a 2GB card but I have read some post from people saying they are using 4GB cards on their 680's