>Thunderbird is the leading open source cross-platform email and calendaring client, free for business and personal use. Your gift will help ensure it stays that way, and will support future development.
That doesn't sound specific enough to inspire confidence. Is there perhaps another passage that you can share which is more declarative and direct that the funds are only going to Thunderbird development? I like TB but every time I fire it up I'm getting this ticking-clock feeling
