After incorporating Reply to scrap, Google Advertisements and friend requests only from people who speak your language, the latest feature which is going to be added in Orkut is GTalk. As is rumoured, GTalk will be incorporated into the Orkut and will be available for use by next week.
After the offline messaging feature added in GTalk, it makes sense to put GTalk in orkut as in that way, users can use it just the scrap way for sending private messages. Moreover, they will be able to voice chat from within the orkut. I think it is more about privacy than a feature. GTalk has already been integrated with many other Google applications which include Google Documents & Spreadsheets and GMail. So Let us see which other Google apps comes up with GTalk embedded into them.