By Chris Stepanik
The critics of Sirius XM Radio (Nasdaq: SIRI) have finally come full circle. Seven years ago, I began following the Satellite Radio provider. As the company neared its first one million subscribers, the "glass half empty" critics began to emerge and brilliantly announced through anonymous message board postings, that Internet Radio and 2G/3G cell phone technology would be the demise of any competing entertainment medium. According to their calculations, Satellite Radio was d...