A couple of questions:
1) The installation guide assumes that "your databases all have the same database server, user & password." Does the plugin also support distributing databases across multiple servers? If so, are there any additional instructions for achieving this? (I did purchase the guide as well.)
2) Of course, databases only represent part of the data on WordPress blogs...there are also user uploads. Do you recommend or offer any solutions for scaling a multisite installation in this regard too (scaling/distributing the uploads)?