This isn't exactly a 'wmwifirouter killer' but a different product aimed at a similar market. wmwifirouter does a lot more than JUST wifi sharing. Please consider:
http://global.wmwifirouter.com/features/
I like having multiple choices (especially free choices) but to say that this is a 'killer' or 'obsolete' really is unfair as it's not a LIKE for LIKE comparison. They don't have the same feature sets (not even close).
HTC doesn't exactly have the whole Windows Mobile handset market locked either. There is still Samsung, Motorola, Sony, etc.