Comment 4 for bug 1091220

There are multiple nexus7 sizes, but the generate image contains pre-formatted fixed size filesystem (as required to flash it using android tools).

The problem is that we don't want to generate 3 images (expensive buildtime, download size, qa efforts).
On the other hand we do want to maximize and use all available space.

To automatically achieve this we can do one of the following:

* Repack the images client-side (may fail to generate or to flash)
* Resize on-boot (may fail, proven to be unreliable with precise)
* Bite the bullet & publish multiple images (by repacking images server side)

We should establish which direction to go & then implement it.