False.
Blackberry assumed the same thing on the Torch---and got promptly canned for it. When a 1GHz CPU has become the new normal for top end smartphones, there is a certain feel and speed that goes along with it. I looked at those videos of Symbian^3 that's posted on this board. That's pretty good if you're used to using Symbian or Windows Mobile phones. Yet when I look at it, it feels comparable to an Android phone at the same clock range (many low and mid end Android phones are clocked now at 624).
It definitely isn't going to pass, or satisfy, someone whose sense of normal has been tuned to an iPhone 4, a Galaxy S or an Android phone with Snapdragon and Froyo. That's where your price range is going to hit.
And with only a 640x360 resolution, a resolution questionable for a 4" screen, you're up against phones with 800x480. And the iPhone is at what? 960x640?
Can a C6-01 and an N8 be interchanged? Yes it can. Its my direct experience that phones that lower ends S60 V5 phones like the 5320, 5530, and 5800 are directly competitive to more expensive phones like the X6, N97 and N97 Mini. They run the same software, run the same speed, their reception is no different. You may take out the wifi or the 3G, but on a good connection, there is practical no difference when you run them. Its still the same speed, the same resolution, the same amount of internal memory, and the same experience.
In fact, one of Nokia greater failures of late is the lack of sufficient differentiation between lower end and high end models.
This is in contrast to other platforms, where low end is an ARM11 processor, over 600Mhz now, with over 300Mb of RAM, with a 3.2" screen and a 320x480 resolution screen. When they go high end, its a Cortex A8 superscalar processor at a GHz, over 500mb of RAM and screens with 800x480 resolutions.
You know, a Cortex A8 chip nowadays don't cost so much. It probably adds a small premium that may be neglible over an ARM11 one. That's how even superphones can cost well under $200 to build.
12 MP camera btw, don't mean much if your sensor area is the same or smaller than an 8mp or 5mp one. The end result of having ever tinier pixels is that they are more susceptible to noise and grain than cameras with lower megapixel count. Furthermore, your image will now take up much larger memory, and yet you still have the same processor as the other phones with a lower megapixel camera.