Is the bull market back?

I think at this point we are getting into Bull territory.  The market was up for March and is up quite a bit in April, led by (gasp!) Bank of America, Citigroup, and even Ford has had a nice recovery.  

Meanwhile, GM is teetering very close to bankruptcy, and public opinion seems to support a chapter 11 filing.  I don't disagree, but I fear that this action would likely cause the market to tank for at least a week.  We'll know soon, they do only have 60 days to get together a plan.