Hop-on has filed to protect the trademarks YahooPhone and YPhone designed for “telephones, cellular and mobile telephones, apparatus, connectors, chargers, headsets and so on”. We know Hop-on as a maker of low-end phones meant for developing markets. It’s not clear how the company will use YahooPhone and YPhone trademarks – if for own phones, it might result in “patent wars”? Or does Yahoo! teamed up with Hop-on to create a cellphone? The info is vague, so let’s wait for an official report (or rumors leaked from reliable sources).