When developers balk, Microsoft sometimes listens. But when 100 of Microsoft's Most Valuable Professionals (MVPs) are up in arms, one has to figure Microsoft will sit up and take notice. Microsoft is on tap to phase out support for its Visual Basic 6 language on March 31. But there is still a sizeable number of developers who have not upgraded to the current version of VB (the VB.Net release), mainly because the upgrade is quite painful. Those in favor of Microsoft extending VB 6 support have signed the petition here.