As to battery duration, clearly, if you need or want more than around 15 hours of power at a time, the Clip isn’t the best for you. (Having said that, you could get a Duracell Instant Power Charger for around $20, a small, rechargeable battery source that will provide around 35 hours of recharge capability per charge. Or a recharger powered by AA batteries for less than that, perhaps handy for travel.) I am sure that SanDisk would love to eke out more battery power for the Clip, but there is a limit given the Clip’s small form factor, with the current state of battery technology (and, as SanDisk has said, given trade-offs, such as cost). Nonetheless, it is amazing to me that the Clip provides as much playing life as my first digital audio player from 5 years ago, more than 10x the Clip’s size (but also with a hard drive).
Marvin, I agree, an improved EQ would be welcome. Having said that, though, even when I had a nifty EQ with my first player, I rarely used anything but a flat setting. But it’s all personal, and I know that a lot of people like to mix their music sound up.
On the pitch front, although I don’t seem to hear any issue personally, I often wonder what I actually may be hearing but not noticing–hence the desire for as high a fidelity as possible. It’s like the age-old question of digital music rip rates: although you may not be aware consciously of the missing data, is it something that affects one unconsciously? Sound is a complex thing.
In the end, the trade-offs all can be very personal.