This week I posted my lap around OSLO experience and in addition to this today Jon put out a intro into M video of approximately 40 minutes. It shows how to model with SQL tools inside SQL Server 2008 versus modeling in M using IntelliPad. In both cases tables are created, data is added and shown through a simple application made in Visual Studio 2008 using Dynamic Data Entitities Web Application Template. It is a very good introduction to M showing how a developer can easy model with M, but you will need to learn language M. Using M instead of SQL tools is that with M one has a database definition file that can be stored for instance in version control system to do differences between versions, branch and/or merge with well known tools later on (Scott ColeStock post on Models as Text post). Check out the video and other related posts.