For hassle-free GPS tracking on Ipads I can recommend the "Bad Elf" App and Hardware equipment (link:
Bad Elf )- charges your Ipad and gives excellent GPS coverage simultaneously and syncronizes with the JeppView App like a dream - no unreliable bluetooth gadgets necessary.
The only thing now missing from PC Jeppview is "Ownship" on the approach-chart and a few other useful tools - but we will get there in the long run I suppose...