Two essential tech specs for a site when designing banners are - flash versions of visitors and whether they have javascript enabled. The W3C stats show as low as 90% of users having javascript on - which means no matter what version of flash they have - 10% won’t see a flash advert (embedding code..) so you need a decent anim GIF or static JPG back up. I’m seeing more like 99% of users having javascript on with sites where I can get these stats. Likewise flash 8+ has 90+ penetration - whereas this is lower on w3c and most publishers are still mandating flash 6 or 7 versions of ads.
Essentially banners should be able to take advantage of flash 8 features and we shouldn’t have to put so much effort into capturing a small number of low-end (or ad avoiding...) users if these stats are similar to what local publishers are seeing.
The question is - are they? And either way - should we be putting effort into making back-up creative for those who are indicating, by turning javascript off, they probably will ignore it anyway?
Oh and what penetration will MS Silverlight have to get to before we can make silverlight banners? ;)
