So..I'm trying to figure out what your expected results are to understand what I am working with.
So correct me if I'm wrong.
You added your profile to the device and it pulled down all your data (contacts, calendar, and memos).
However new memo's you add to your phone do not sync over to the tablet, however calendar and contacts are.
If that is the case then you are getting expected results. Although the TouchPad and webOS Phone can share a profile no data is synchronized except during that one time setup (similar to how that DTA worked with moving data from your computer to the device). Subsequent data would need to be added to both places except for when you use an online account such as Google for the data which is what I'm assuming you are using for calendar and contacts.