How do I download photos from Picasa to the iPod Photo Library for offline viewing?
If you have a computer, download Picasa 3.9 for Mac/PC and use its batch downloading features. Then, in iTunes, connect your iPod, click Photos, check Sync Photos from:, and click the dropdown menu to reveal Choose folder... and navigate to ~/Pictures/Downloaded Albums/xxxxxxxxxxxxx/albumname/ (with xxxxxxxxxx being your Google user ID number and albumname being the album you wish to import to your iPod). Sync and finish!