TOEIC Speaking / Writing Test

New TOEIC Test started from May. But another new TOEIC test called TOEIC Spaeking / Wriging Test is going to start from January 2007. We can check more detail on these Web sites.
http://sp.toeic.or.jp/square/sw/index.html
http://www.toeic.or.jp/sw/index.html
I wonder whether I should take this test or not. I have to check and ask about this test. In my opinion, this new test will not be more popular than the TOEIC test. Because TOEIC LPT is less popular than the TOEIC test. I don't know the importance of the TOEIC test will be. But I feel the TOEFL test will be more important because it can check Listening skill, Reading skill, Speaking skill and Writing skill once and we can measure these skills only one scale or score. On the ohter hand, TOEIC is not and will not because the start of TOEIC Speaking / Witing Test is anounced.
I might take the TOEFL test. I have never taken the TOEFT test, but do I have to prepare for it? Finally, I have to check the tendency of the importance many English tests, like the TOEIC test, the TOEFL test, the CASEC test and so on. I have to decide which test has the imporatance to measure English skill and I should take and prepare for.