"Over the past six months, significant progress has been made in areas such as training, technical support and application availability. The same is true in the critical area of customer acceptance of Linux as an alternative to other platforms, which has been perhaps the single biggest factor blocking Linux's move into the business market.
However, much less progress has been made in reducing Linux certification as a barrier to acceptance, with the percentage of solution providers citing this factor remaining about the same in June as in December. Vendor-neutral certifications will likely play a role in solving this problem, given the nonproprietary nature of Linux." More at CRN.com.