Looks like the new version (1.5.4-dfsg-1) is out:
http://packages.debian.org/sid/virtualbox-ose
This new version should also be able to build against kernel 2.6.24
which is needed for Hardy.
BTW, shouldn't the status be 'in progress' if someone is already working
on a merge?
Also I think because
** Summary changed:
- Please update Virtualbox to 1.5.2
+ Please update Virtualbox to 1.5.4
** Description changed:
Binary package hint: virtualbox-ose
New version has many fixes, including a bug which occurs in Gutsy
- because its new tickless kernel feature. Changelog can be seen here
+