In TripleA, this is very similar to the purchase UI that already exists (shows number you chose and adds up the costs). Though we eventually want to expand on this to potentially allow users to be able to plan where they want to place them and display reminders on the territories. It would also save this info so you could then essentially choose to just confirm previous decisions when the actual place step occurs (not have to try and remember where you wanted them).
I know of no plans to make another computer version of A&A. However, there are several organizations that host on-line play of various types, including GameTable Online and AAMC. A Google search should turn most of them up.