i see where i can re-send an invoice to a client, but it's possible that they can take that message and misinterpret it as me having created a new invoice for them, and not a REMINDER that the invoice was sent ___ days ago and they should pay it.
ideally the reminder would allow a client to "reply back"; saying they will pay asap, the check is in the mail, etc.

In the settings, just add a decimal number and a label defining the V.A.T. e.g. in France : Label = "TVA : " Rate = 19.6. Result :
"Maintenance" 1 950
"Hotline" 1 950
_____________________
Total (HT) 1900
TVA (19.6) 372.4
_____________________
Total (TTC) 2272.4€

Allow account holders to print or email multiple invoices at the same time. This is very useful for billing periods where many many invoices must be printed and mailed or emailed to clients.

This would enable a much greater degree of automation, which is the goal for any billing system.

We need to change the invoice number format. It has defaulted to #3000 - however, we are already using this number within our invoices already issued and as such need to be able to configure it to be something like:

[CHARS][START NUMBER]
e.g. WEB100650

I am sure other people must need to do this?

I recently had to fire a client. I deleted his client account here, but the invoices connected were not deleted and I cannot view, edit, or delete them.

Assuming you are populating the PDF forms by field name, I would like to be able to upload a PDF (maybe specific to my company, client, or even project) which would be the skeleton PDF to have InvoiceMore populate for me. I could create the PDF myself and set the field names to whatever you dictate.

If companies have a large list of items and use product id's for their items it would be useful if they had a way to insure that their item was indead a match to the product id.

colors that will match my logo and branding would be awesome!

Possibly make the pages faster and more smooth by having ajax features, such as when you click on a client's invoice, the info slides out below... that type of ajax features.

Support multiple currencies on invoices, payments, etc. instead of just allowing account holders to switch currencies in the global settings.

Create an invoice, make it overdue (it does show on the dashboard as overdue), make a payment for this invoice (I've been using the full payment amount and this does remove it from the dashboard as overdue). After deleting the payment the dashboard does not show this invoice as being overdue.