Office Integration on the web

One thing that SharePoint does really well is: Office Integration on the Web

We can make something similar with WebDAV - but it is not easy and requires a lot of 'gears' (extra database, java, activex etc)

Please make Office Integration easier for everybody (e.g. include a working sample app)

What we need:

- Click on Office icon in web to open file 

- Lock WebPage while office app is open (don't allow user to close web page before office document is closed)

- When saving file in Office, it should be saved directly in Notes (using WebDAV)

- and extract names fields/cells/properties to notes document