I was pretty sure you just made up this 25,000 hours estimate (or thought you got it from a reliable source), because it's way too low, so I took the time to navigate the TI page (which is surprisingly hard) and came up with this:
omap 3530 reliability
The OMAP's expected mean time between failures is 92,480,000 hours. That's over 10,000 years at their estimated operating temperature of 55 celsius. That's 131 fahrenheit. I don't know about you, but my Pandora's probably going to be operating at about 75F (~24C) most of the time.
Honestly all this anti-burned-in boards is just needless scaremongering. They have already done environmental and physical stress tests on the OMAP hardware, they're just testing that all hardware parts aren't going to have a premature failure, that the board design is solid, and that they all are operating correctly (no intermittent connections, etc.) As I said before, if you're worried, give me your place in line.