I have to admit I'm thoroughly impressed with Sinatra and DataMapper. I've tried merb, but I didn't get too far. I'm accustomed-to and pleased-with sitemap powered web applications and Sinatra fits into that category.
So what about DataMapper? DataMapper appears to have the capacity to make developing web applications a heck of a lot easier for me - even ones that rely heavily on XML and XSLT.
This is all good news for this Ruby Code Experiments blog as I'll be posting a lot more as I continue to work with Sinatra and DataMapper.