I am a huge fan of Google Apps, particularly the ability to have full Gmail, contacts and Google Calendar for my own domain.  What was missing was the ability to merge my gmail contacts with those on my domain's contacts list.  This was particularly frustrating because I use Google Voice and it was linked to my personal Gmail.  Thankfully, Soocial.com, a product I have been using to keep Outlook contacts in sync with Gmail, and which is totally free, now allows you to set up multiple Gmail accounts for syncing, including Google Apps accounts.  This will make my life much easier, and makes Google Apps an even better free solution for email.