iPad photo workflow

Hi, this is what I'd like to do while on a long vacation:

1) Take photos with my Sony RX100
2) Use the camera connection kit to load them on to my iPad mini
3) Use a nice simple interface to choose the keepers and delete the rest
4) Organise them somehow - e.g. folders or tags
5) Perform basic tweaks on a some of them - e.g. levels
6) Upload all the keepers to some sort of private archive - e.g. Picasa
7) Upload a few of the best to Facebook

I'd like to upload them in full resolution to my private archive. I'd prefer to use something relatively open - I'm not too keen on the Apple online offerings. I currently use Picasa so that's my preferred option, but I'd happily switch if needs be.

Is there an app that does all this? Perhaps there's a few apps that can work together sharing photos in the camera roll to get all this done?