My experience with rd.io:<p>1. A friend offered an invite. I checked out the home page and saw a screenshot on a nexus one and was thankful there was an android client.<p>2. Registered and found out there was no android client ('coming soon')<p>3. Realized that my invite was for a 3 day trial and that the monthly cost would be $10.<p>4. Said 'screw it' and went to play a few songs. more than half of the songs I went to play would just be skipped on my playlist with no explanation.<p>All in all, a terrible first impression.