Just released the AiR-BOOT Developer Documentation to the public. It's on the latest v0.28 level. Perhaps someone is interrested in it :)
Sorry for the delay of v0.28b. There will be a localized italian version as well.
Direct-Link to docu:
http://kiewitz.ath.cx/KiewitzSoft/air-boot-developer.txt
cu, Kiewitz
Source: