It'd be helpful if there was a way to set the look-up method (Normal/Server) through the /localinfo command.
Also, IIRC, there were instances where pIRCh would detect my actual I.P. address when mIRC would not. It would be nice if this was improved upon also. I have encountered many people on high-speed connections who run into a problem with mIRC returning the incorrect I.P. address.