I am sure that this will help JRun achieve more market share. Macromedia is a GIANT in front end web development, with them officially supporting JRun and integrating it into all of their offerings, JRun usage will skyrocket! Not to mention Macromedia's powerful marketing machine!
This is incredible news! First Brokat buys Gemstone, then HP Buys Bluestone, now Macromedia buys JRun. This should definatley skew Giga's marketshare predictions for 2002.
Another article about the acquisition: