Previously I've posted an entry on my notebook also from iPhone but that is through the secret e-mail. Some key items such as labels and multiple photos support are mising from the e-mailing method.
By using BlogPress I can manage and edit posts, add labels, photos, and etc. Additional features which would make this application better are landscape authoring, spell check, geotag and url link. Other than that, this app really makes mobile blogging easier.
-- Post From My iPhone