Yes, I wanted to have this whole thing on my H2O as well, but finally decided that it is ok to use H2O as a document reader, leaving HD as a "Linux tablet" or "pocket Linux PC"
I also tried Marek's Debian on Kobo Touch and Mini but found it very fragile and, most importantly, binary incompatible with either this (Debian on AuraHD) or with the standard Linux environment on the Kobo --- the very important consequence of this incompatibility is that you can't use CoolReader and Koreader binaries on it directly.
Oh btw, I benchmarked opening a PDF file (just a typical typeset PDF file of one of my books from
http://www.bibles.org.uk/study-edition.html) and got the following results for opening it (for the first time, i.e. without any caches):
1. Koreader --- 0.5 seconds
2. evince on Debian AuraHD (of this thread) --- 8 seconds
3. evince on Marek's Debian on Mini --- INFINITY (i.e. I waited for 95 seconds and then killed evince as it took too long).
So, Marek's environment is at least 10 times slower than Xu's and at least 200 times slower than the native Linux environment of Kobo.
Oh btw, I noticed one odd thing: WiFi on both native Kobo Linux (by "native" I mean Kobo Start Menu plus Koreader plus CoolReader) and on Marek's Debian gives me about 3.5MB/s of rsync speed, but with Debian on AuraHD it doesn't get higher than 1MB/s max (normally about 800KB/s). Any ideas why is WiFi so slow?