Muni Bonds - MUB (iShares)

I keep hearing that muni’s are too cheap and still relatively safe. I know very little about fixed income and even less about munis. Anyone know much about MUB (iShares)? Good/bad idea at this time (I’m in the 28% marginal tax bracket)? Is this down so much b/c of the illiquidity of the underlying bonds rather than the deterioration of quality? What do you think about bond ETFs in general?

don’t know much about bond ETF’s, but the reason muni’s are so historically cheap is because of expected financial strain on municipalities over the next few years. you might have seen this recently with schwarzenagger (sp?) elbowing his way to the front of the bailout line.

And when he got his bailout he said “I’ll be back”… hahahaha

With credit un-freezing I’m taking a position in this today