Editor's note: The following are questions received from listeners of "RealMoney Radio." To send Cramer a question about topics from his radio show, click here. Listen to Cramer's latest radio show by clicking here.Is Noble Energy (NBL) a mon back*? -- Jeff from Kansas James J. Cramer: It's tough to be super bullish on the energy stocks just yet given the recent decline in oil and natural gas prices, but I remain long-term bullish on the fundamentals of the group and would still use weakness to my advantage to position for another leg up. Jim, your take on PortalPlayer (PLAY)? -- James from Washington State James J. Cramer: PortalPlayer has made quite a nice run over the past week. But I believe this stock will rally every time Apple ( AAPL) puts out a new product that includes parts from PortalPlayer. With that in mind, I think it's still an attractive buy here. *For all you home-gamers, a 'mon-back opportunity means Cramer would back up the figurative truck and load up on a stock.