I find this funny. People think Vitaly Petrov should be dismissed by Renault, despite doing exactly the same thing. Kobayashi goes from the back of the grid to the points after making a mistake in qualifying and he's a "pure racer". Vitaly Petrov goes from the back to the grid to the points after making a mistake in qualifying and he's unworthy.
It's their team-mates and cars that make the difference. De la Rosa is totally different benchmark than Kubica, R30 is also way more comptetitive compared to C29 and with better equipment the expectations are much higher even for a rookie.
About why no one was interested in Kamui - maybe there was some interest from other teams but we didn't heard about it (although I doubt it, cause it's such a "poor" silly season, many top drivers signed before half of the season). The fact is that all of top drives are taken for next year, Williams are happy with their line up, there are many candidates for partnering Kubica next year and the only seat that could possibly be a step forward is in Force India. But Peter Sauber is well known for spoting young talents and I would be very suprised if he would let Kobayashi after only one year of driving.
KK will celebrate his birthday in one weeks time, it's a great gift from the team for him. I wonder if Petrov who's b-day is tomorrow will receive such present