Meant to reply earlier; TC doesn't require monitoring, it just requires a central station and account number. Most CS will just let the dealer create a non-monitored account and not bill for monitoring, since they make a little margin on passing through TC billing.
It's not common, but I think it will become more common as dealers find ways to compete with self-monitored systems.
It's not advertised by Honeywell at all, and of course the Central Stations would rather we use them to monitor the systems, but it is an accomodation they've made. I've heard anecdotally that some Centrals won't support non-monitored TC accounts.
In response to your #3 Point. Actually ADC does support network connectivity if you have a device that uses it. For example with 2GIG, if you use a GC2 (CP21), You can use a Go!Bridge Communicator to do this. And now with the new GC3 firmware update, it also does this as well.
It utilizes dual path connectivity in which the backend (ADC) will accept whichever "signal" it receives the quickest between celullar and network internet.
This can sometimes greatly improve your alarm reporting and zwave device performance when you have a weak cell signal at the install site.
The larger Honeywell panel, Vista-250, appears to be compatible with both Total Connect 2.0 and Compass 2.0. The inability of Total Connect 2.0 to work with more than one partition, whether it's a Vista-20P or Vista-250BPT, is disappointing. I've been asking about multi-partition features in Total Connect for 3 to 4 years and they still have no idea when that will happen. You can use the "keypad icon" in Total Connect 2.0 to manually change to another partition to control that partition, but events and notifications only work with partition 1.
Thanks for bringing that up. I'll edit the text above to reflect this. To your point, ADC sells 'connected home' software features to Moni, who then substantially rebrands and modifies those parts into their own platform. The monitoring backend is proprietary to Moni.
However, ADC does not offer support to 'MyMoni' accounts, nor do customers purchase 'alarm.com' from Moni. Likewise, a Moni dealer sells more than Honeywell and may not chose to sell TC2.0 at all.
So, a Honeywell dealer, an Alarm.com dealer, and a Moni dealer may fundamentally compete for the same customer and represent their own offerings.