I don't know anything about the VG10 so I'm afraid I can't be much help. If it takes SD media, it SHOULD work for recording purposes (the Eye-Fi Pro X2 is rated as a Class 6 device, so check your documentation on that.) If you want to wirelessly transfer video, however, the Eye-Fi will not do the job. It sends JPEG's (and RAW) still images only so AVCHD video would need to be processed the old fashioned way.
Can I send it back if it dose not work? The VG10 will take the card Class 6 is ok for video but I use it mostly for photos.