Christian Oestlien, the Ads Leads on the Google+ Project, just posted a message along with a brief YouTube video about future Google+ plans, covering a variety of topics. Christian advises users should refrain from creating business profiles.
In the video he states that:
We've a great team of engineers building similarly optimized business experience for Google+. We're very exited about it and hope to roll it out later on this year. It'll include things like rich analytics and the ability to connect that identity to other parts of Google that businesses might use on a daily basis, like AdWords. So we're asking people to hold off on using consumer profiles to get a business identity on Google+.
Christian also mentions that there'll be a test group of "non-user entities" (aka brands, corporations, places) who'll be selected. To sign up for this test follow the instructions here.
Incase, if you've already set up a Google+ profile? Read on:
The business experience we're creating should far exceed the consumer profile in terms of its usefulness to businesses. We just ask for your patience while we build it. In the meantime, we're discouraging businesses from using regular profiles to connect with Google+ users. Our policy team will actively work with profile owners to shut down non-user profiles, Christian stated.