Getting a BPO on a short sale doesn't necessarily mean anything. The lender is gathering information on value. They may have ordered several BPO's and possibly an appraisal. I've had completed BPO's an a property for well over 30 days and still have received an answer. Some lenders are faster than others. It would depend one which one in handling this property. Short sales can take up to a year to get completed. If you really like the house then the wait is worth it.
Karen Paytas, GRI, CMS
Real Living Kee Realty
If it was an Interior BPO then you can feel good that it was due to the short sale, but if it was just an exterior then it could have been for a number of reasons (short sale, missed payments that trigger a bpo, the bank is packaging your loan to sell and they need an estimate of value....)
Your best bet is to contact the person handling your short sale and get their input.
Apple REalty West