Text messaging on the HTC Tattoo is definitely an experience. You have two options when texting people, you can either do it when the phone is in portrait or landscape. We would highly recommend texting in landscape.
Our digits aren't the podgiest, but when we used the phone in portrait it took a long time to text someone, as we had to constantly correct what we had written.
Touchscreen phones are renowned for being a learning experience for even the most seasoned of texters. The HTC Tattoo is also lagging behind the Magic and Touch in that its screen is 0.4-inches smaller, at 2.8-inches.
This makes a massive difference when it comes to texting, as even though there is an option to have full QWERTY in portrait mode, the letters are far too squashed together for you to be able to use it properly – unless you have a sniper's aim.
Landscape mode means that letters have a bit more space to breath and fewer mistakes are made.
Another problem with the HTC Tattoo is that it seems to have adopted the same predictive text model as the HTC Magic. For some reason there is no way to turn this off (if there is then HTC has put this in a well hidden place).
On the whole the system is fine, but unless you are constantly looking at it, it will give you predictive words that you don't want. Keeping an eye on this and making sure that you are hitting the right letters is a bit of a pain.
A number of times we texted a message to a friend and mentioned their girlfriend Jen. The HTC Tattoo changed this to Ken without us realising, which could have got both parties into a spot of bother when the text was sent!
It also has to be said that as the phone uses a resistive screen, you have to be even more precise in the hitting of letters and apply a bit more pressure than you would with a capacitive screen. We know that this type of screen has been used as a cost-cutting measure, but it does feel like a backward step for HTC, who used capacitive screens on both the Magic and the Hero.