Manual text input per se may not be the most important interaction with wearables. But getting this to work may be an important first step toward building, for

Manual text input per se may not be the most important interaction with wearables. But getting this to work may be an important first step toward building, for example, a gesture-based method to interact in general with wearable devices that are resource-constraint (eg, small screen, limited voice/camera capabilities, etc). Seems like you have some thoughts on other methods to input text when you say "we need to think of different ways to input text".