The FitBit and upcoming iWatch are different enough products, the two companies don't have to be at odds. Apple should keep selling FitBits if Apple Store customers want them and FitBit should add iOS8 integration.
It would have made more sense for Apple to partner with Visa/MasterCard/AMEX rather than individual banks. If they worked with the transaction processor, all card issuing banks could have been covered.
Apple can't step on, fight, and take over everyone in their way. It makes sense for them to partner with existing banks. Let the banks take care of handling the credit transactions and Apple can supply the technology.
A "Virtual Assistant"? Looking at those screens, with the little microphone icon asking "Jeff, How can I help you", it just looks a lot like Clippy, which we still poke fun at Microsoft for thinking was ever a good idea. But I have faith that Apple will think of a way to present it that doesn't have the annoying downsides that Clippy had, but we'll see.
Google Glass may not be a smashing success, but it does advance one area of technology. Wearables are still very new, everyone is still learning and researching. It would be a loss to wipe out all the time, money, research, and lessons learned from what Google has done.
Neither makes sense. Apple needs to stay focused on what they're good at and a massive merger or buyout will cause too much chaos. That's the problem with Google and MSFT, they're always drifting in different directions, searching for another sector to get into, then half-ass it.