We had already learned that Slacker was working on bringing on-demand music, however we now know that it is set to arrive in October and will come with a $9.99 per month price tag. The on-demand offering will be in addition to the existing Slacker accounts in that the free account and the Radio Plus accounts will remain intact. The new on-demand service will go under the name of Slacker Premium Radio and offer the same features as a Radio Plus account. In other words, Slacker Premium Radio users can expect to have no ads, no limits on how many songs they can skip and they ability to cache music on mobile devices for offline listening. And of course, the added benefit of on-demand. My only question, can I have it now?