The new Apple services end up duplicating or at least overlapping with other existing services. Apple’s advantage is not so much whether a given service is better, but whether the combination Apple services is so convenient individuals will cease to use the individual services provided by other vendors. I don’t feel bad when the best service is provided by a big player. I do feel it unfortunate when better services are ignored.
There has been a lot of attention paid to the music issue with big players Amazon and Google already being in the game. I think Amazon and Google also have advantages because of other services and size so I am not expected Apple to dominate the music market. I guess this will depend on individual tastes. I now purchase most of my music from Amazon, but I also have tastes less focused on the newest trends (I guess Amazon also offers inexpensive individual songs for the current popular artists).
I think the biggest challenge will be for smaller, one service providers. For example, the new features of Safari overlap with what I current use Instapaper and Readability to do do. Both Readability and Instapaper offered an immediate response offering their perspective.
P.S. – After generating this post, I found a post on TechNMarketing that lists multiple services the author argues will suffer because of the capabilities the new Mac OS (Lion) includes. I think the point is similar to mine – the existing service may have some unique and valuable features but these will be lost because of the advantage of an integrated approach.