The current Marble release on the N900 is version 1.4. We had another major stable release on the Desktop in the meantime, Marble 1.5. When we do a new release for the N900, we need to ensure that the changes in that release do not have a negative impact on the N900 version. As far as I know Bernhard had an eye on it since he still uses it regularly and builds from master.

Marble 1.6 just entered (soft) feature freeze with the rest of KDE. Beta and RCs will follow, the release is planned for August. Bernhard said he would do the N900 packaging, but please don't take that for granted unless he confirms it here. He might be more motivated if people step up here and say they're still using good ol' N900 and would like to see new Marble versions