From steam update news:
Soon, we'll be releasing the first in a series of updates to Counter-Strike: Source which will be focused on moving the core Counter-Strike gameplay forward.
Hmm, I don't know what this will lead to.
The first update will include an updated version of the map Train, which will feature an HDR lighting pass, some minor layout changes, and a number of small bugfixes.
Blah blah
The second facet of this release will be a completely reworked radar system. There will be a significant change to the aesthetics of the radar, but there are also some fairly significant gameplay ramifications to the new system. One example: when you look directly at an enemy for a long enough time for their name to appear on your screen, everyone on your team will be able to see that enemy in the radar. We're planning on releasing this first update in about two weeks.
Oh my, it's almost like beef! Personally I don't think this will work that well in CS:S, it does in beef, but with beef the action is much more spread out than CS:S. It could make things in CS:S ... bad. Though most of the time people end up dead before they can look at an enemy long enough for their name to appear, so it might not be too bad.