Gabe, if I'm following along correctly, I believe that since you are syncing wirelessly at work with the new 7290, you will not be able to sync with any PIM at home.
I personally have yet to see anyone sync wirelessly at work and also sync at home. I use desktop manager at work with the BIS option so that I can sync in both places with no probs.
I hope Aroc's suggestion will help you. Would love to hear if it works.