Yes, but even the Hamburg is only around 6.4 ounces or 180g (iPad 3/4). That's still the lightest case I found that offers multiple stable viewing angles. All those folio cases without grooves are fine if you only use them on a table, but are too unstable to use in bed/couch/lap. Same goes for the Moshi case. Next best stable folio in regards to weight seems to be the Devicewear Ridge with a hardshell back cover but it's 50% heavier but also offers some drop protection.
Personally I like the fact that the Kavaj cases cover part of the front, since that makes it easier to grip the iPad. And the iPad fits even with one of the thicker skins like sticker boy.
Anyone know if the Devicewear Ridge works with thicker skins (e.g. sticker boy's Easy Extreme Fit skins)?
Are you referring to the leather frame on the inside? I hope it's more minimalist on the Air since there is less actual frame on the Air itself.