A Solar Hacker Edition of the kit, which has everything except the bamboo enclosure. Normally, a 5W panel and 6Ah battery alone would cost more than this, but you'll get the charge controller circuit plus booster circuit too! With 10W (2A @ 5V) of output, you'll have plenty of power to do cool stuff with!
A Limited Edition solar power pack kit. The bamboo enclosure will have a special engraving with unique serial numbers (only 10 will be made). Additionally, the kit will come with a colored faceplate instead of the clear acrylic faceplate in the standard model. The LE kit will also come with an extra 5W solar panel, replacement battery, and AC adapter.
A Limited Edition solar power pack kit, plus all the extras as described above for the $250 level. PLUS a Deluxe Edition kit (see $140 level) to give to your favorite person. PLUS, a prototype unit that will be shipped shortly after this Kickstarter campaign reaches its goal (even if it's before the end date). The prototype enclosure will be numbered, and have your name engraved on it (just in case, you know, you lose it at a bar...).