At this point, it appears that handset manufacturers are still not convinced that MEMS sensors are worth spending the money necessary to create the device drivers needed, mostly because there's uncertainty about whether consumers will like MEMS-enabled features enough to pay more for them. As a result, these manufactures currently expect a total solution, one which MEMS sensor suppliers are unable to provide, nor can they do so on their own. Partnerships will be required, but those have their own issues.