I juist build a new website in Silverstripe 3, but after trying to run it on a commercial web host instead of my MacBook, the speed made me cry... And I often got a message like service disconnected from the shared hosting account (ultimate from Godaddy). This of course made me run some tests on the MacBook, which opened my eyes a bit: SS3 has really thousands upon thousands of requests to build the pages. It was clear that running the current site would not cut it. Luckily I read just in time that most problems should be solved in SS 3.1 in a post by Ingo Schommer.
As the site should be usable immediately, I had avoided the beta version before. The speed issue however made me change my mind. The upgrade was quite painless. I had to change all public statics such as $db to private statics, upgrade some modules that had 3.1 versions (and rewrite some too), change <% control in the templates and after about 2 hours all was set. Amazing. 70 per cent faster! It truly made my day.
The website by the way, now transferring to its final server and I will probably discover some glitches in the coming days, is www.energieprojecten.nl .
By the way, having recently bought a Windows RT device, I am also very happy with the backend. It works like a charm in both touch mode as well as with the keyboard of my Lenovo Yoga 11.
Keep up the good work folks!