I've been doing some beginner tutorials as well: http://www.mobilehtml5.com

Also, my startup (http://www.appstorehq.com) provides search+discovery for mobile apps, including mobile web apps. We're trying to push the boundaries with mobile web apps (e.g. easy, App Store style payments) and are looking for alpha testers.. If anyone is interested, email me: iseff@appstorehq.com