UPDATE: 18 January 2012 - Issue has been resolved. There are no longer any problems uploading images.
17 January 2012,
The server we were using to allow users to upload photos has suffered a severe hardware issue. The ISP has spent the whole day installing new hardware and restoring the software from backups.
Note: this situation does not affect any images that were previously uploaded. They are not served from this server. This only affect users who are trying to upload new images.
We believe the restore process will probably be finished early morning 18 January 2012.
Symptom, when inserting a signature to a reply email on the iPad, the Apple Mail application opens a brand new email instead of inserting into the existing email.
Unfortunately, we have no control over the difference in behavior on the iPhone and the iPad, since this is how the Apple Mail app responds on each platform.
We have put in a bug request to Apple and hope to hear a positive response to the problem.
We are also investigating other ways to workaround the issue if they decide not to fix the bug.
Both Email Signature and Email Signature Pro has updated hotlinks to support
Gmail, Skype, WordPress, Digg, Tumblr and Email.

Email Signature is the best signature application available for the Apple iPhone / iPod Touch. A must-have for all business professionals.
We've had several requests asking if we could allow users to change the formatting for each line in each text field instead of the whole field. We've resisted doing that in the past because we thought it would complicate the user interface and making it difficult for users to configure their signatures.
If you're a savvy user, there is a way to do this although it definitely isn't a point-and-click solution.
Symptom, you create a signature and when you insert it into your email, you get a null character. Chances are in your signature you used a % sign. The percent sign is a special character to insert other special characters like space. e.g. %20 means space or %2A means *. So when you add a % sign on it's own, the Mail app doesn't know what to do with it and does something horrible like insert (null) in your email.
To add a percent sign in your signature you should put %25 which means add a percent sign.
Wikipedia has an excellent article on percent-encoding.
To use your email signature when replying to an email, do the the following:
1) Hit the reply button in Apple Mail
2) Exit Apple Mail by using the Menu button (the hardware button at the bottom of your iPhone)
3) Run the Email Signature app, and select your signature
4) Your selected signature will be inserted into the reply email
5) Compose and send the email as normal
Note: follow the same procedure to forward an email.
This process is required due to the limitations that Apple applies to ALL Third Party applications, Email Signature Pro included.
Recently Facebook changed the way anyone accessing public pages on Facebook via their iPhone. Anyone trying to access a public profile page with a claimed name is prompted with a login page. Apparently, they require you to login before accessing these pages. However, while the url they create suggests that they take you to the page you requested after logging in, they do not do so.
Like us, many of you have multiple email accounts. Yes, it would be cool if we could associate a signature with a particular email account.
Unfortunately, NO Third Party application on the iPhone has the ability to select a specific email account. Whenever Signature launches your Mail Application, it ALWAYS sets the email account to the default one. We agree, this is annoying!
To select another email account when you are in the email compose screen, tap on the From: field and it will allow you to choose a different email account to use to send the email.
There have been a lot of requests to embed images rather than use a web image. We would love to too! Here's why we had to choose web images.