The Xoom also features a gyroscope as well as a barometer for measuring the atmospheric pressure while the HP PalmPad has a gyro.
Xoom还提供陀螺仪，和测量大气压的晴雨表，当然HP PalmPad上也有陀螺仪。
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Though there have been rumors of a PalmPad, code-named Topaz, that looks similar to the HP Slate 500, HP has been tight-lipped on details of its webOS tablet(s).