The HTC Hero and many other HTC phones do not have a 3.5mm headphone jack. According to Smartphone Thoughts, when a spokesperson from HTC was asked why more devices from HTC do not feature a 3.5mm headphone jack he said that the HTC phones in the future will now include the 3.5mm headphone jack as a standard feature.
Reportedly, his statement is as follows: “The vast majority of devices we launch after Hero will have a 3.5mm jack. Devices that we have already announced but that still come out after Hero will not necessarily be a part of this change.”
Therefore, HTC phone users in the future will be able to listen to their favorite music easily and conveniently without the need for a bulky adaptor.
However, the spokesperson has not revealed exactly when this decision will come into play and which new phones will sport the 3.5mm headphone jack.