Analysts are predicting that enterprises are going to embrace mashup technology in a big way in this year. See this blog from ZDNet analyst , http://blogs.zdnet.com/Hinchcliffe/?p=78.
Few companies are doing great job in making the adoption process very smooth with their innovative product. Companies like Data Mashups or KapowTech have very innovative offerings.
Big Blue is also eyeing this emerging market with QedWiki or Adieu.