Recent development of direct methanol fuel cells operating at elevated temperatures are reviewed emphasizing research on membranes which are suitable for high temperature conditions. Current research on this topic in our laboratory is also described. The most important result is the development of a family of proton conducting membranes based on polyphosphazane polymers. Experimental work has been conducted to characterize these membranes, in particularly, in terms of conductivity and methanol crossover. It was found that polyphosphazane membranes can have much smaller methanol cross-over than Nafion 117.