[thorax]

No, it's not a good thing beyond perhaps raising awareness of it and maybe temporarily increasing demand for it. The stability it had was a great sign and it was seeing some solid use for transactions (especially for virtual goods). The sudden increase is going to add risk to day to day transactions and thus make people shy again from using BTC for purchases.

[stevenwagner]

Its pretty obviously a good thing if you bought some at 7 a week ago. 30% increase in a week is not bad.

[lmm]

But there's no reason to believe it won't go down 30% next week. Fluctuations of this magnitude are terrible for something that purports to be a usable currency; more like what you'd expect from penny stocks.