Lightroom 3 Publish Services

I'm finding Lightroom's Publish Services very useful for managing photo portfolios on the web and devices. I never imagined the Hard Drive publishing could be so useful - as soon as any change is made to an image in a Publish Folder it will move to an unpublished state so that you know to re-publish - very cool.

Check out this Terry White tutorial on publishing for iDevices. The only thing I'd add to his advice is regarding the iPad. Instead of using his recommendation of 1024x768 at 72ppi, I'd recommend exporting at 2048x1536 at 132ppi. 132 is the resolution of the iPad screen and doubling the pixel dimensions will give you some room to magnify the image. I can't confirm that this is optimal for iPhone 4, but it works well for iPhone 3.