BlackBerry is up more than 5% on Thursday, buoyed by the CEO’s comments about partnerships that might mirror the recent Apple-IBM pact. That Apple-IBM alliance was seen by some as a fatal blow to BlackBerry, since it gives iOS another boost in the enterprise market. But BlackBerry has recently started resembling a mythical Canadian beast that absorbs fatal blows with polite disinterest, growing only stronger as its prospects weaken. The company’s handset business remains on the ropes, with its last stronghold of Indonesia about to come under siege by a Xiaomi product offensive. The new square BlackBerry phone has been greeted by a sort of incredulous embarrassment, though the company remains relentlessly upbeat about its prospects. But perhaps the biggest recent setback