IPTC Metadata Editor with Spellcheck and more

Question

Bridge and Lightroom could benefit from a robust metadata editor. Quality IPTC data is almost as important as the images themselves. Afterall that's how we and our clients will find our valuable images.
Desired Features:
Spellcheck of at least Description and Keyword fields
Thesaurus would be great for creating Keyword sets
More flexible keyword sets to allow more nesting and organizing of similar keywords
Autofill searching of previously used keywords
Desired Functionality:
Must be fast and dependable. Currently Bridge is pretty slow, writing one keyword at a time. This seems to cause Bridge to hang up on itself and spit out corrupt files or not apply metadata to random files among a large selection.
Perhaps it would be better to have the enter all metadata additions and changes at once to all selected files and hit update, append or replace. FotoStation has had a useful interface in which the user can opt to replace and/or append and/or leave alone various metadata fields all at once.
Currently it is difficult to resolve a large selection of files that all should have the same keyword(s) but some already have it. We are forced to first remove the keywords(s) by pressing the minus sign, wait for that to happen and then reenter the keyword(s). This can be painfully slow for a large batch of files. I've often resorted to manually writing a metadata template in Wordpad an appending the template. It needs to be easier than that.

Answer 1

The IPTC metadata needs a large amount of work across all the Adobe product line.
Desired Functions:
(1)The identical fields/names and consistent characteristics across all products that generate end-user files; for example, Audition (audio), Acrobat (PDF), Photoshop (image), video products and so on. Audition 1.5 still carries the RIFF metadata but no IPTC format data. Acrobat 7.0.7 Pro does have some IPTC like data fields but has a major data integrity problem with the Description field data. In Photoshop CS2, I can utilize CR/LF via "Enter" to make the presentation more readable as separate paragraphs or new line items. In the Acrobat "Description" field I can follow the same procedure and all looks good upon entry. I do a Save and then bring up the IPTC Description data (same file) and all the data after the first CR (Enter) is lost! Never received any error or warning message.
(2) I think this pertains mostly to generation of PDF files. Currently, when I generate a PDF document having the same location/file-name that I designate for the "new" file, I appropriately get the warning about the "same name". In addition, give me the option to have the metadata in the "old" file copied to the "new" file.
(3) Publish (at least in the Help function) all the idiosyncracies for each field (e.g., can I not do CR/LF functions?) and the maximum number of characters possible in each field. Please don't reference me to some standard for the information....tell me what the product line supports! In addition, generate warning messages if I do something outside the field support at the time I am entering data in the field. When possible include such information alongside the field window. One example of this is the note below the keyword window about the comma seperator. The problem with this particular comment is that is states "the comma MAY be used as a separator". Don't tell me what MAY be used...tell me what CAN be used (e.g., spaces, semi-colon, etc.).
(4) Major update required in the Help function for metadata. Right now it is very poor and not of much use.