It's an interesting point, about which Oracle might argue entertainingly. e.g. if a market has a limited life, then 2 days delay means 2 days less to make money (markets don't last forever). e.g. being earlier to market is well known to does make a difference for getting a foothold in a market (mindshare, word of mouth, technical feedback, supplier relations), but especially because you are judged relative to your competitors - releasing your next version before their next version helps you win.
Except that Android's first release was a beta and SDK, almost a full year before phones shipped.
From that, it's not remotely clear whether saving 2 days to beta would have even resulted in 2 days of savings in the creation of any device.
To say nothing of whether Google/TMobile/HTC pre-selected a launch date in advance for the Dream, in which case they easily may have squandered a handful of days waiting for their desired PR timing.
