The editing features have always been the weakest part in my Evernote usage. I use markdown every day to type notes. As your current support of that kind of notes is quite poor, I've quit using Evernote to edit notes and moved to Dropbox + sublimetext. Evernote now only stores my clips and my scans. But I'd be glad to come back you the new editing capabilities include Markdow editing. But why basic markdown? Github's flavour of Markdown would be a great option. I'm looking forward to testing this version.