The reason is only now becoming apparent. Tolven's founders, most of them former Oracle executives, have the chops to adapt mainstream open source technologies to the field. They've already got Sun executives blogging about them.
Medsphere co-founder Scott Shreeve has called this STAT news, believing it could save the whole OpenVista movement.
The strategy is to build out open source EMR, PHR and hospital systems based on OpenVista and open source standbys like PostgreSQL and JBOSS, offered under standard open source licenses like the GPL.
They have dotted the i's and crossed the t's before launch. The question remains whether Tolven can get together the critical mass needed to make inroads in an increasingly-crowded market.
I hope they have Skip McGaughey's number.