"In looking for a highly speculative stock for our portfolio, I have settled on MannKind Corp. (NASDAQ: MNKD), a company that is developing an inhaled insulin product," says Nate Pile.

In his growth-oriented Nate's Notes, the advisor cautions, "I believe we are looking at a situation in which we will either lose most of our money, or triple (or better) our investment in a fairly short period of time."

"In a nutshell, the company's near-term fate hinges upon AFRESA, a novel, ultra rapid acting mealtime insulin therapy being studied for use in adult patients with type 1 and type 2 diabetes mellitus for the treatment of hyperglycemia.

"Working against the company is the fact that there has never been an inhaled insulin product approved for commercial use that has worked very well.

"After its run to a new all-time high last month, Amylin (NASDAQ: AMLN) appears to be undergoing some upper level consolidation," notes biotech specialist John McCamant.

Following a presentation by the firm's CEO at a biotech conference, the editor of The Medical Technology Stock Letter concludes, "Management has made a compelling case why the stock's current trading range should be just a weigh station on the way to an even loftier valuation."

The advisor explains, "At the Newsmakers in the Biotech Industry Conference -- which took place September 6 – CEO Dan Bradbury discussed the still unrealized growth potential of both Byetta and Symlin."

Regarding Byetta, he notes that Mr. Bradbury indicated that over 85% of diabetes specialists have prescribed the drug at this point, we are now starting to see prescription growth among primary care physicians."