If you're a Lightroom user, you can publish your photos directly to your iPad from Lightroom complete with their Lightroom ratings, flags, keywords and comments and, once there, use all the normal sorting and filtering controls to make it easier to find the photo you want.
You can also use your iPad to edit the metadata directly and sync this back to Lightroom. Pro photographers, get your clients to apply their own star-ratings to their photo-shoot. Not so pro? Sit somewhere comfy while you rate, flag and tag your own photos.
PhotoPhile uses internal RAW photo decoding for most camera types and is extremely fast. The custom decoding allows it to show very large photos even on older iPads. Do you want to zoom right in to a 50 Megapixel photo? PhotoPhile can do it!
Upload photos directly to your iPad using a tethered Eye-Fi Mobi or Eye-Fi ProX2 card, with instant previews and automatic geolocation. Fully automatic setup of Eye-Fi Pro cards, no fiddling around with XML files on your PC to extract arcane codes! Both JPEG and RAW photos can be used, depending on which type your Eye-Fi card can send.
Automatically or manually send photos to FTP sites, Flickr, Dropbox or Google Drive, Twitter, Facebook and Microsoft OneDrive.
Display your geotagged photos on an interactive map, and add geolocation data either by hand or using a GPX file, complete with address lookup.
Check the tutorial videos at https://www.youtube.com/playlist?list=PL-hSTSY7Vdxh-hqZ8qfeNrfH4jFL-AFNW