Mark for New Hampshire called today to enquire about a solar panel and inverter that could charge his cell phone using an AC power jack. He really wants the inverter to run from the Pop-up Camper's battery and then use the solar panel to charge the battery. He doesn't use much power, in fact he says his 100Ah battery last about 4 days when dry camping. This is with no charging. So he won't need much solar and the 7 watt AC load for 2 hours a day won't add much additional usage either.
Here is what I recommended for his POP-UP camper.
Inverter:
150 True Sine Wave Power Inverter
This has enough power to also run a small TV if he later decides to add one. It will also connect directly to the 12 volt sockets in his POP-UP camper.
Solar Panel:
For solar he wants to lay the panel on the ground around his POP-UP. He doesn't plan on walking on it, but I still suggested a nice 20 Watt Unbreakable.
Here is the article on Unbreakable Solar Panels.
http://blog.outsidesupply.com/solar/solar-panels/unbreakable-panels-are-great-for-rv-use.html

