The HTC Butterfly, which appears to be a variant of the HTC J Butterfly and the HTC DROID DNA, has surfaced on HTC's web site. With the slight name change comes a couple other differences. Most notable is the absence of LTE capability. Although that may be a negative, on the positive side the Butterfly's storage is expandable via microSD cards.
According to an HTC spokesperson, the HTC Butterfly is slated for release in China. However, no information regarding availability in other countries or markets has been released. At the bottom of HTC's page for the Butterfly, there is an offer for 25GB of Dropbox space for two years if you sign-up or log-in to Dropbox using an HTC phone. The footnotes to that offer indicate the offer is only available on the HTC Butterfly device, but not in China. This would seem to imply the Butterfly will be available in other markets.
source: Android Central
more info: HTC
