The list of Qi Wireless Chargers working with Nexus 4
* Official Google Wireless Charger Orb. It takes inspiration from Palm's Touchstone and has a soft-touch plastic.
* Energizer Dual Inductive Charger station with two large zones.
Working with all Qi-enabled devices.
* LG WCP-700 Portable Power Mat Home and Office Charging Pad
It has Beep issues and you need to disable that.
* Philips Wireless bundle
only available in Europe. It fits in with any home or office, and has hard shell sleeve for robust protection.
* If your family member has already has a SAMSUNG I9300 GALAXY S3, the S3 Pad & Adapter also works great.
After tested Nokia Lumia DT-900 pad, it is not working with Nexus 4 phone. It keep starting and then fails. If you have find out any other things, please post in the comment.