After using Google Apps for a few years I am wanting to move back to self hosted. I am tired of how Google handles IMAP and also their position on privacy doesn't help.

My question pertains to the account aspect of a migration. From the searching I have done apparently all Google Apps accounts are Google accounts as well. Does this include things like GTalk? The bottom line is I would love to continue to use GTalk and other services using my current email address. Does anyone have experience with this?