If I could make calls on the tablet, I wouldn't need to carry a phone at all. That is the draw for me, cutting down to one device.
You would carry an 8in device around with you everywhere? Not exactly ideal for most people.
1280x800=fail. I don't know why they are still releasing new devices with such low resolution. Especially with a slightly larger screen. Also I suspect unless a pen is *very* important to you they are pricing themselves out of the market. At least if they had launched a 900p or 1080p tab they could have made a claim it was 'premium'
I'd rather have seen a larger resolution myself, but 1280x800 isn't a huge deal breaker. If the other specs on the screen are good, it'll look fine.
Pricing is the biggest question with the Note 8. Priced too high, and people will go for the Nexus 7 or the iPad Mini. The Note 8, IMO, needs to be under the price of the Mini, ~300 at most for WiFi model.
Should also be considered that the Nexus 7 will be getting a refresh in May at Google I/O, so that will likely change the entire dynamic. The current N7 completely changed the tablet market.