Note that with such high sampling rates you leave awfully little time for processing. 1KHz sampling means you have 1ms to process every sample, which is basically a no-go as Maemo is not a RTOS, not to mention the powersave/governor funk you're going to hate if you need no-lag operation. Also, every readout contains *some* error (plus, inertia can be a harsh mistress) so integration/filtering is recommended to work with realistic data (which again does not help if you really do want and need high sample rates).