We run E10.0.700.3 at the moment (1 Server 2012 VM that runs SQL 2012, 1 Server 2012 VM that runs the E10 appserver, and 1 Server 2012 VM that runs RemoteApp for the E10 client - all on the same ESXi host) and will likely move to E10.1 in the next few months. We actually found that at sites with low internet bandwidth, RemoteApp is a little slower than when the client is installed locally. One site running a T1 told us that, and we confirmed it to be the case. It may have had to do with the nice metro interface in E10. The sites with 35/5 coax or 10/10 fiber seem to run RemoteApp about the same as installing the client locally.
I actually heard someone say at Epicor Insights 2015 that Epicor 10 ran better when installed locally on client machines connecting over site-to-site VPN. We never really had to test that theory other than at the site with a T1 that I mention here.
I don't know anyone using open source ERP's on a large scale yet, mainly because of the support contracts you get with enterpise commercial systems and with all or most of your companies data being in this system - you really want a support contract even with in house development incase something goes wrong.
Agreed, and even a lot of closed source ERPs like SAP don't scale worth a damn either, I think the biggest difference is with the support contracts people feel better, where as if you hit a scalability wall with OpenBravo or something, you're basically screwed unless you want to hire some Java programmers. Even if SAP takes 2 days to fix something, that's a lot better for a company than something never being fixed, or having to setup all the outsourcing/insourcing to fix some internally mangled Java app.
I also noticed the article doesn't mention and sources or any companies using open source ERP. And this is written by a guy who does Open source ERP Implemntation/customization so bias is likely.
I hear that... this is typical though. They'll ignore 500 fail cases and concentration on 2 use cases and call it success.
I've never used NAV, just the plain old Dynamics/GP. - Which is quite a beast of a system. I've only dealt with it in environments with lots of customization and the interrogator would provide yearly support contracts.