I found my phone! The cleaning staff told me to ask at the facilities office on the 5th floor, and sure enough it was there. I'm immensely relieved, but also slightly disappointed that I won't have a good reason to buy a Nexus One.
She hated the on-screen keyboard until I taught her to turn the phone into landscape mode whenever she wanted to type something. The voice recognition works quite well also.
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Re: You can buy a nexus one anyway