At some point, the CPU's built into phones will be powerful enough to handle most desktop applications for businesses without a noticeable performance hit. We're not quite there yet, though. Maybe in three or four more years, perhaps.

I have had domains for private services such as databases(accepts request only from a list of IP's), file servers, and messaging services. I also use them for dynamic addresses.

My general rule of thumb as far as user id's: If your id is higher then mine I will give you toss it up to the member being young and ignorant about a topic when they overlook something simple. If there id is lower then mine they should be at least my age, and have a decent background on technology and its history as they lived it.