Which ROM should I flash? I'm planning on just flashing CM9 on them, as ICS is definitely smoother than Jelly Bean, and I don't think they're exactly going to lose any sleep over not having the latest Android version. I'd be happy to hear suggestions for other 4.x ROMs if any turn out to be faster or more stable.
How much can I overclock them? 902MHz with Smartass V2 seems to be a popular default, should I just go with this?
This may be a silly question, but does the Vivacity (Telenor Touch Plus) have hole for a lanyard/strap? Both of them are girls and like things dangling off their phones, and I couldn't quite make out whether there was one on the display model in the store.