In reviewing the 1018-page House Bill on health reform there appear to be a few issues that could negatively impact health savings accounts. There is a limit on the out-of-pocket costs that could effectively narrow the plan design for HSAs. The limits set in the bill set a max-out-of pockets (single/family) of  $5,000 and $10,000. There [...]

Yes – the majority of HSA restrictions center around contributions to the HSA with fewer  restrictions on the withdrawals. In answer to the  question above, money in an HSA can ALWAYS be withdrawn tax-free for the medical expenses of the account holder (also known as the account beneficiary in the IRS regs), the account holder’s [...]

The Internal Revenue Service said that economic stimulus payments directly deposited to individual retirement accounts and other tax-favored accounts may be withdrawn tax- and penalty-free.
The relief is designed to help taxpayers who may have been unaware that by choosing direct deposit for their entire regular tax refund, they were also choosing to have their stimulus [...]

Are any earnings in savings from interest or investments subject to tax at any time?
Earnings grow tax deferred and are taxed ONLY if taken out for non-medical purposes. Otherwise there is never a tax on the earnings.
Is there a penalty for over contributing to the HSA?
Yes, you must pay income tax plus a 6% tax [...]