FreedomPop launched its free 500mb monthly data plans in beta earlier this month with a conventional hotspot and USB dongle free to users with a refundable deposit. The promised WiMAX-enabled iPhone and iPod cases were not yet available, but today the company announced availability of a $99 4G Hotspot sleeve for iPod touch called “Freedom Sleeve Rocket” (via TechCrunch). It’s not the best-looking case we’ve seen, and still no iPhone version, but it is free data to third-gen and fourth-gen iPod users in reach of partner Clearwire’s network. FreedomPop will charge you $10 per GB after the free 500MBs, but it will also allow up to eight other devices to connect to the 4G sleeve. TechCrunch said the iPhone version would launch in November.