Yes we can: HTC One for Chinese carriers officially rolls with a microSD and two SIM card slots
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We saw it leaked not long ago with removable back cover, a microSD slot for storage expansion, and an extra SIM card slots for maintaining two carrier networks at once. Granted, the battery still seems sealed, or at least not easy to access without unscrewing and ungluing, but we wonder what repairability score this one would get.
via EngadgetChina
Things that are NOT allowed: