The speech bubble says something like, "Sorry, guys (meaning Fisi and Heikki on the left-hand side). We have no time to work on your cars. We stopped to work to prepare for 2008."
Piquet Jnr. is intriguing for me, maybe the most intriguing story if it's a one-team race next year. No doubt he'd want to take on Alonso, but I don't think that will be received well in this particular team. Many F1 purists insist that rookies have to pay their dues and should not show the "balls" to defy a two-time WDC teammate who the team desperately wanted back. In retrospect, if you ignore the lies and deceptions, no one really disputes Mclaren would still have the WDC for 2007 had it given No. 1 status to a bushy eyebrow Spaniard. No one in their right mind would think Alonso, who has beaten both Kimi and Schumi is relatively equal cars, would lose 17 points in China and Brazil.
I think Piquet definitely has speed and is probably more technical than his daddy, but I don't think he will be beating Alonso. I reckon it's better for Jr.'s own development to learn from a WDC and noted car developer in your first year, instead of going all out to beat him at risk of offending your team.