Last year Microsoft announced that the next version of NAV (codenamed NAV 7 but likely to be called NAV 2012) would allow you to access NAV not only via the full RTC windows client but also via a standard web browser and also through SharePoint. Now we have the first screenshot examples of how it will look that are not covered under the non disclosure agreements that we normally see previews under. As you can see it is completely recognisable and pretty cool.
And the SharePoint alternative looks good to, web parts from NAV can be mixed on pages with any other SharePoint web parts such as document library's.
Scheduled release seems to be September/October of 2012. You could be using this before the year is out!