SharpMap v0.9RC1 is now available for download from the SharpMap website.
Thanks to all the people who kept sending feedback and bug reports!
I've resolved a lot of bugs since beta 1, as well as added some obviously missing properties and methods in the API. Especially the Shapefile reader has been enhanced to handle a lot of special cases (in one case it was even able to render a file that ArcGIS claimed to be corrupt). On-the-fly transformation has also been completed and now supports transformation between geographic and projected coordinate systems.
Thanks to Humberto Ferreira for providing us with an Oracle Spatial provider as well. SharpMap now supports data from ESRI Shapefiles, PostGIS, Oracle, Microsoft SQL Server, Access and ECW raster.
Last but not least, I've spent a great deal of time enhancing the documentation, so go take a look at that as well. There are lots of code-samples hidden in there as well.