The plot thickens...
According to a couple of my commenters, the Nokia 6680 was not called Cho during its development, one suggests that the Nokia 6681 was called Cho based on this manga series, whilst the 6680 was called Milla (based on the Finnish name for Magica De Spell - Milla Magia) and the 6682 was called Ginny (yet another manga character). However Nokia employee merely Antony Pranata refutes that the 6680 was called Cho and also apparantly airbrushes any mentions of Cho from the 6680's Wikipedia page. Maybe airbrushing is putting it too harshly, but still it's a little strange.
Odd stuff indeed, I've decided to call my 6680 Eric.