The time delays are hilarious sometimes. I'll often catch an "inventive" edit on recent changes, fix it, and several minutes later get an email about the change and think there's an edit war starting. But, glad you're back in business; we don't need admins to NOT have notifications.
Really, the only thing I don't like about walls is that it's difficult to get involved in a discussion you weren't invited to join. An advantage to a talk page is precisely that-- you can respond to a topic, scroll down a bit, and see there's something else you might want to chip in on. The whole "new messages" notification is pretty neat and helpful, but I feel like it has taken the community aspect out of it all.
Quick thought...there are numerous task forces on Wikipedia and on most successful wikis. Why don't we set up a task force to have all the discussions on user walls archived? Here's how it would work:
Each user wall would be archived to the user's respective talk page.
Once ALL walls are archived, we'd do our switcheroo.
I'm pretty sure this would work. We'll need to make sure any active editors are aware this needs done. I, for one, don't consider myself active right now (terribly busy with other aspects of life), but I assume we have at least one or two people who visit frequently. For example, I think Artie's been visiting daily in hopes of winning bragging rights of being at a higher user rank than me. ;)
Visiting my History page reveals that I have about fifty threads. (Most of them, are of little real significance.) To access a thread, one must click on the subject. Once the thread comes up in the original format, one may next select and copy the visible text in each post one at a time and paste it to another page. I can think of maybe five or six people here who would be willing to undertake this task. Wikia specifically designed the interface so that once Talk is selected, Walls become hidden. Only one of the four of us can toggle between Talk and Wall and I'm not completely sure that Walls won't re-initialize. If I could write a bot to perform the task, I would. But I can't. What's next guys?