I'm making a web app to help buyers to design the texture of a co-creator model. The problem is that I'm using HTML5 and CSS3, but they are not fully supported by Internet Explorer, save the next IE9 that won't be available for Windows XP!?. I have tried to make something for IE8 with the help of Excanvas, but I would have to remove many of the options available to users with Firefox, Opera or Safari browsers (have to check Chrome). So I'm thinking about taking into account both types of users in the future co-creator form using: - A field to upload the image designed by the user with the web app using a browser capable of HTML5 & CSS3. - Several fields to enter the elements required for the texture. I would make the final texture with the web app following the recommendations of the client, but this method doesn't ensure a result just as the client wants. Checking recent browsers statistics, around 60% of users are using IE, but if you discount old versions (6, 7), the quota decreases to less than 50%. One solution for IE users would be to download a portable version of Firefox or Opera (I'm not sure about Safari) that could be removed without problems once the web app has been used. I have added a poll to this entry to know the opinion of the people, at least the people that participate in this forum. I don't want to extend this post talking about why I haven't used other web technologies for the app such as Flash, Java, etc., but I'll answer any question about this topic for the interested ones.