Drupal information
You can post directly to Drupal from PhoneBlogz. There are a few things to note which could cause problems.
Firstly, the current release version (4.6.6) will not post to a cateogry, even though PhoneBlogz sends the information to Drupal in the post. Hopefully this will be fixed soon.
Secondly, the default input format is "Filtered HTML" which means that the Flash player HTML is not accepted. There are two workarounds for this: 1) change the default input format to "Full HTML" (although this is a possible security risk) or 2) after posting, edit the post and change the input format to "Full HTML" for that post only. This problem will no longer be an issue when 4.7.0 is released - in this version you can create a dedicated user for phoneblogz and assign a default filter to just that user.
You will also need to enable the bloagapi module and ensure that "personal blog entry" is checked in the module setup. Without this, Drupal will not accept posts from external systems, ie PhoneBlogz.
You can find more answers or post questions in the Drupal help forums on the site.