While the basics are there, it's partial.

Your theory holds true for daily charging only, and optimal temperature.

In real life, a heavy user will heat the battery and charge it daily several times, so the used battery gives out sooner. In a well cared for laptop, with no heating issues (good luck with that), the battery will die of old age; however, most of the people I know have had issues with battery life after one year max.

Oh and lastly, mobile phones actually use Li-po, (sometimes) contrary to the label. They have slightly different charging/discharging parameters.

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In N900, pulling the battery doesn't work because the charger can't guarantee clean enough current with no drops which is paramount for a fast system like the N900.

It uses the battery as a source, always. Also, charging is software controlled so don't let it discharge to no end.

Are you sure people are saying turn off GPS and not GPRS?
...as per this bug?

definitely not GPRS (at least in all cases) - people were talking about the GPS receiver and satellite locks and such, no doubt given that

I've had my N900 nearly two weeks now and have only just realised if GPS is unticked under location settings it doesn't work thanks to you guys :/ Mind you there aren't many useful GPS aps out there at the mo anyway.

I was under the impression an app would overide the GPS off setting if it needed to. Seems not. Bit of a pain for me as I liked using the location feature in availability when it was just from cell tower but it's gonna kill my battery trying to obtain a GPS fix inside on the WIFI lol.

IMO there should be an option to disable GPS for my location and only use it when an app ie OVI maps needs it... Otherwise its manually switching GPS on when I need to use maps :/

I think (don't hate me, try it) that if you set location level to country or city it gives up on true GPS and only uses "coarse accuracy" which is Nokia for "no lock, we're just guessing here based on cell towers".