QUOTE(Tinnus @ Jan 10 2009, 11:39 PM)
QUOTE(marshal @ Jan 10 2009, 07:59 PM)
Also I think the device will be "always on". The nokia internet tablet are... the processor and power management is so efficient that it uses less power to just leave it on for a few hour instead of shutting it down and power it up again.
Now if for some reason you have a process that go crazy and uses 100% cpu for a few hour that could seriously drain your battery.
That cannot happen. The device will be put to sleep when closed (unless you run a music player or something that explicitly tells it not to), and to hibernate after too much time sleeping. Which means:
- Sleep: the CPU, screen, speakers etc are turned off but the RAM is kept on to keep things as they were. CPU state is saved to RAM and kept safe. Resuming is almost immediate (this is what happens when you close a DS except for some weird games, and when you "turn off" a PSP without keeping the button held for more than 4 seconds). Since the CPu is halted, no processes or anything are running. This uses very little energy (think lots of days without having to charge, like when you leave your laptop/DS/PSP closed).
- Hibernate: RAM is saved to disk/nand/card (HD in regular desktops and laptops). EVERYTHING is turned off. This uses ZERO energy since everythign is asved to persistent memory. When you turn the device again, it boots as normal but the OS loads faster because the "only" thing it needs to do is load the RAM image from the disk.
I was thinking too much of how my Internet tablet works and assumed you would want to keep it always on. What you're saying is perfectly correct of course. Putting the device on standby when closed probably make sense for how most ppl will be using the device.
I sure hope they can get standby / resume time to be really quick. Like less than 5s.
Time in standby should be amazing on a device like the pandora. If it can play music for 100hr, standby time should be a multiple of this. So can't imagine it being less that 1week and wouldn't be surprised of it lasing 2week or more... that's of course pure speculation from my part.
To go back to my Internet tablet, it just doesn't have a standby mode. It's made to be "always on". And because the wireless has both good range and low power usage you can actually have it check you email / refresh your RSS at a frequent interval. I don't have much trouble making it last a whole work day this way.
I have no idea how good to pandora wireless is going to be but if it's good I would expect some people doing the same thing as on my Internet tablet.
Edited by marshal, 10 January 2009 - 11:19 PM.