you should be fine, as it doesn't sound like Apple is axing iTunes, simply adding more value.
SInce you probably aren't purchasing media from the iTunes store, your music collection and your usage will be unaffected.
considering the "rising" portion took a good 20 years, i dont see much to be concerned with....
i've been using Macintosh since its inception in 1984, and still find it amazing that it has taken so long for the OS to begin to "catch on" with the masses.
then question the content of the whole article, since none of it is anything new - as noted in the article, there have already been 200 million news app downloads.
fingertips is a perfectly acceptable, and technically correct, descriptor in my view.