Ashen:Unfortunately the device sent to Telecom to be fixed still returned with the same problem of freezing / slowing down itermittantly.
I've found reviews of the device from overseas that state the HTC Libra / S720 (Okta Boss) has two problems:
1.) Crashing when using Media Player
2.) Intermittant Hangs / Freezing
It looks to be a problem that extends beyond NZ's Okta Boss and to those handsets provided by other service providers in other countries.
After much frustration from users these devices will be returned.
I still think they're a great device - very functional, easy to use etc - but their consistent hangs absolve any of those benefits.
There is also a DST issue with them, in that they do not apply the Extended DST update properly for the end of DST in 2008 on the 6th April, not 16th March (under old rules). See my other post for details.
I'd advise caution in going down the Okta Boss path.
If you don't experience any of these problems I'd hazard to guess you'd be very happy with the device - but I wouldn't take that leap.
I took peoples advice and took this phone back to Telecom. It was away for two weeks. They did some extensive testing on it but it came back with flying colours. The phone was reflashed and tested at some length from what I can gather. I haven't had the freezing problem since but I've only had the phone back 3 days. Will let you know.
If you return the phone to Telecom for repair you must say: REFLASH WITH LATEST SOFTWARE or they will not do it.