Wish I could tell you what they are — but CEO Tim Cook offered sizzle without steak in his call with Wall Street analysts today after Apple reported its second-quarter earnings. He says that Apple will enter new product categories, but wouldn’t be more specific. “We can’t wait” to introduce the products, he says. “We have a lot more surprises in the works…We have some really great stuff coming in the fall and across all of 2014.” He tiptoed around a question about whether he might offer iPhones with screens larger than 4 inches, following competitors including Samsung whose smartphone screens run 5 inches and up. “Our competitors have made some significant trade-offs in order to ship a larger display,” he says. “We would not ship a larger display iPhone while these trade-offs exist.” He added that Apple has “the best products by far” as well as “the best ecosystem by far, and we’re going to make it better and better.” Company watchers expect Apple to introduce a TV set that integrates conventional and online video and wrist watches that communicate with its iPhones, as well as a subscription online music service that would compete with Pandora. Investors are eager to see new products as Apple’s mainstay products face growing competition from rival smartphone, tablet, and computer makers.