Is there a way that an end-user (or site collection administrator) without access to PowerShell or STSADM can check to see what template was used to create a given site on SharePoint 2010?
Actually there is, but it seems to be something of a secret that not many people have noticed. Simply view the HTML source of the page and search for 'g_wsaSiteTemplateId' - this will give you the site template and configuration used to create the site.
So when I look at it on my SP2010 My Site, I see:
var g_presenceEnabled = true; var g_wsaEnabled = false; var g_wsaLCID = 1033; **var g_wsaSiteTemplateId = 'SPSPERS#0';** var g_wsaListTemplateId = null;