In the Beta 2 version of the .NET Framework 2.0 product, there are various APIs that have been added in since V1.1, but are marked obsolete. All of these APIs will be removed from the product at V2.0 release. These are APIs which were added during the beta cycles of the V2.0 product lifetime, but as a result of design changes and/or product feedback, have subsequently been replaced, or will simply be removed. It is paramount for your ability to easily move forward to the final V2.0 release of the product that these obsolete APIs not be referenced. This list is the APIs which will be removed before the final release of V2.0.
You can download the list from here.