Introversion giving a peek into the XLBA process

For those that haven't been pointed to this, and who might be considering doing an XLBA title, the folks at Introversion are really giving a decent peek inside the process, including the background on email threads from their initial contact with XBLA bizdev (back in 2006) through to the most recent bug reports and the like. The playtest & usability reports for example, are a really good insight into some of the services MS can provide when working with XBLA devs. Would be nice to see someone comment on whether Sony & Nintendo are comparable.