I don't like how when you click a link in the text box it pops up in Browser. I realize that on the Release Notes for Byond 341 you said this is in preparation for 4.0, and I dunno what you're planning to do with it, but as long as you're able to use Browser to insert web links, you should probably have an option under Preferances to make it pop up in a separate window or the same one. Its just annoying to click a link and have to wait for Browser to load (if you've got a slow computer) just to see a picture someone is posting =(

Again, I don't know what you're planning to do with Browser for Byond 4.0, though.