It's completely up to you bud. I think e72 would be a good phone than N900. Beside it last you longer without recharging every night like we all did with our N900.

There is no certain of what PR1.2 will bring yet. We all not knowing when it will be coming out either. But I guess it is never be wrong to have more than 1 phone

be safe than sorry. Just like condoms, better to have more than one in the wallet, as a precaution for emergency usage when you need it.