This is absolutely needed! Actually, while waiting for 3.0, I've been using UltraVNC. With this, there's no need for hotkeys: copy on either the local machine or the remote window automatically goes into the clipboard for both. This is fantastic and saves me tons of time.
Radmin 3.0 better work this way or it's already behind in features before it comes out.
I visited your site several months ago and was excited to see version 3.0 in alpha version. Imagine my surprise to see (several months later) that your site hasn't changed one bit! It seems that from reading several of the other topics that the most anyone is getting for a release date is .....
Now, I know that all major projects have an end date (even for beta testing). Even Microsoft declares release dates! It would be better for you to just tell everyone the real release date. This has two benifits: one, customers (your customers) can start to set expectations for rollouts, and end-of-year (use-it-or-lose-it) money. Two this keeps your programmers task oriented as well.
I would much rather see you announce a date slip, than to just drag everyone along.
You have a good product, keep us informed, and I think you'll see alot a good will go along with this release.