A PowerGlove has extreme noise and accuracy limitations, as should be obvious by now. However, it is sometimes possible to use a small amount of information to extract enough identifying and discriminating attributes from data to uniquely identify it.
Also note that sign language is two-handed, but that we only have one glove. This is a significant problem, but its severity is alleviated by a number of factors:
This does not mean, however, that there are no signs solely distinguished by what the passive hand is doing; it is just that fortunately, this does not occur in a large number of cases.
This will certainly be a challenge, but if it is to be an effective communication tool, that can be used in the general domain, then a large proportion of the population could not afford to purchase US$5000 gloves. At US$500 or below, however, people might be able to afford it, even if they have to put up with a slightly higher error rate.