Last week ASUS opened up a registration page for owners of the Eee Pad Transformer Pad who were dissatisfied with the all-metal tablet's GPS reception, promising to send them an external GPS dongle to fix the issue. The first of those dongles (or as ASUS calls them, the "TF201 GPS Extension Kit") are now reaching owners' homes. If you havent's ordered one, you can register your Transformer Prime and apply for a free dongle at the ASUS support site.
While we're sure that the GPS dongle works, it's certainly not an ideal solution. The plastic device plugs into the main docking port (blocking both charging and the keyboard dock) and affecting the Prime's svelte profile in a less than aesthetically pleasing way. The problems with GPS reception, and WiFi to a lesser extent, come from the all-aluminum chassis of the Prime, something that ASUS rectified with the new Transformer Pad 300 model.
If you haven't ordered your free dongle yet, you might want to hurry - presumably there's a limited supply of them, and ASUS will stop receiving applications on July 31st. Based on initial user feedback, the free shipping takes about a week. Even if you don't use the Transformer Prime's GPS function, you might want it anyway. And as unsightly as the plastic extension is, it's better than hearing "you're holding it wrong."